8 Best Men's Activewear UK Sites For Deals And Brands 2025

Finding quality men's activewear online shouldn't be this complicated. You browse through countless UK retailers, each claiming to offer the best gym gear. Prices vary wildly. Delivery costs add up. Return policies differ. Some brands focus on style over function. Others sacrifice comfort for performance. You want workout clothes that work for your training without breaking the bank.

This guide compares eight top UK sites where you can buy men's activewear in 2025. Each retailer brings something different to your shopping experience. Some specialize in high performance gear for serious training. Others focus on affordable basics that don't compromise on comfort. A few offer exclusive brands you won't find elsewhere. You'll discover what each site stocks, their price ranges, current deals, delivery options, return policies, and who they suit best. By the end, you'll know exactly where to shop for your needs and budget.

1. Take a Hike UK

Take a Hike UK combines outdoor adventure gear with practical activewear for people who live active lifestyles. The site stocks items that bridge the gap between technical outdoor equipment and everyday workout clothing. You'll find everything from camping essentials to comfortable activewear pieces that work for both gym sessions and casual wear.

Key men's activewear at Take a Hike UK

The activewear selection includes moisture-wicking base layers, insulated jackets, and versatile backpacks designed for movement. Your options focus on items that serve multiple purposes rather than sport-specific gear. The site stocks posture correctors for active recovery and water-resistant outerwear that transitions from trail to street. You can browse products suited for hiking, camping, and general fitness activities without navigating through dozens of sport-specific categories.

Deals, discounts and price range

Take a Hike UK runs monthly deal sections with rotating discounts on selected items. The August Deals feature shows how the site regularly reduces prices on popular products. Prices typically range from £20 to £80 for most activewear pieces. Free delivery applies to all orders over £50, which matters if you're buying multiple items. The pricing sits in the mid-range bracket, making quality gear accessible without premium brand markup.

Free shipping on orders over £50 removes a common frustration when shopping for men's activewear uk online.

Who Take a Hike UK suits best

This site works best for multi-activity users who need gear for various outdoor pursuits. You'll appreciate the selection if you hike, camp, and train rather than specializing in one sport. The mix of outdoor tech and activewear appeals to people who want functional items without excessive branding or fashion-forward designs.

Delivery, returns and extras

Customer support runs 12 hours daily, six days a week (Monday to Saturday, 8am to 8pm UK time). You can return unused items within 14 days for a full refund, giving you breathing room to assess your purchase. The money-back guarantee removes buying risk when ordering sizing or trying new products.

2. Gymshark

Gymshark built its reputation through social media marketing and fitness influencer partnerships rather than traditional advertising. The brand started in a garage in 2012 and now ships to over 180 countries. Your shopping experience centers around performance-focused designs with distinctive styling that makes Gymshark pieces instantly recognizable in any gym. The UK-based company maintains a strong community presence through athlete collaborations and regular product drops.

Key men's activewear at Gymshark

The collection spans compression wear, seamless training tops, and joggers with tapered fits designed specifically for lifting and cardio. You'll find their signature Vital range for basic essentials and Legacy line for premium fabrics. Training shorts feature four-way stretch materials and practical pocket placements. Hoodies and track jackets dominate their layering options, often selling out within hours of new releases. The brand focuses heavily on bodybuilding-inspired silhouettes that emphasize physique rather than loose athletic fits.

Deals, discounts and price range

Gymshark runs seasonal sales up to 50% off, typically during Black Friday and summer clearances. Prices range from £15 for basic tees to £75 for premium hoodies and joggers. The site offers a student discount through Student Beans and military discount for service members. Sale sections refresh regularly with previous season colors and styles at reduced prices.

Regular sale events make Gymshark one of the more accessible premium men's activewear uk brands for budget-conscious shoppers.

Who Gymshark suits best

This retailer appeals to gym enthusiasts who train regularly and want gear that showcases their physique. You'll fit the target market if you value brand identity and appreciate fitted cuts over relaxed styles. The community aspect attracts people who follow fitness influencers and participate in gym culture.

Delivery, returns and extras

Free standard delivery applies to orders over £50, with express options available for faster shipping. You get 90 days to return items for store credit or exchange. Gymshark runs a loyalty program called Gymshark 66 that rewards repeat purchases with exclusive access to product launches.

3. Castore

Castore positions itself as a premium performance brand that combines engineering precision with athletic style. The company collaborates with professional sports teams and athletes to develop technically advanced sportswear that performs under competitive conditions. You get access to fabrics and construction methods typically reserved for elite athletes, brought into consumer products. The brand emerged from Liverpool and maintains strong ties to British sporting culture while expanding internationally.

Key men's activewear at Castore

Your choices include seamless training tees, breathable shorts, and lightweight jackets designed with input from professional athletes. The collection features moisture-management fabrics that pull sweat away from your skin during intense sessions. Training tops use flatlock seams to prevent chafing during repetitive movements. You'll find minimal branding compared to mainstream sportswear, with subtle logos that don't dominate the design. The brand stocks base layers for cold weather training and compression pieces for muscle support during workouts.

Deals, discounts and price range

Castore rarely discounts full-price items outside seasonal clearances in January and July. Prices start at £35 for basic tees and reach £120 for technical jackets. The site occasionally offers bundle discounts when you buy multiple items from the same range. Student discounts don't feature prominently, making this one of the pricier options for men's activewear uk shoppers on tight budgets.

Premium pricing reflects Castore's focus on technical performance over accessible fashion sportswear.

Who Castore suits best

This brand suits performance-focused athletes who train seriously and want professional-grade gear. You'll appreciate Castore if you value subtle branding and prioritize fabric technology over trend-driven designs. The target customer typically competes in sports or maintains high training standards.

Delivery, returns and extras

Standard UK delivery costs £3.95, with free shipping on orders over £100. Returns are free within 100 days of purchase, giving you extended time to test items through multiple training sessions. The site runs a referral program that gives you and friends £15 off when they make their first purchase.

4. Under Armour Outlet

Under Armour Outlet focuses exclusively on discounted sportswear from previous seasons and overstocked items. The site offers up to 50% off regular prices across their entire men's activewear uk range. You access the same performance fabrics and technologies that made Under Armour famous, just at clearance prices. Their outlet operates year-round rather than running limited seasonal sales, giving you consistent savings whenever you shop.

Key men's activewear at Under Armour Outlet

Your product selection spans compression gear, training shorts, and moisture-wicking tops across multiple sports categories. The outlet stocks items for gym training, running, golf, basketball, football, and hiking. You'll find their signature HeatGear technology for hot weather training and ColdGear base layers for winter workouts. Training joggers feature tapered fits with zip pockets for secure storage. The site maintains separate sections for Project Rock collections (Dwayne Johnson's collaboration line) and sport-specific gear like football boots.

Deals, discounts and price range

Prices start at £10 for basic tees and reach approximately £60 for premium jackets at outlet pricing. The discount structure means you pay 30-50% less than full retail on most items. Additional promotions layer on top of outlet prices during major shopping events. You won't find student discounts since the entire site already operates at reduced rates. Clearance sections offer deeper discounts on limited sizes and colors.

Outlet pricing makes Under Armour's technical fabrics accessible to budget shoppers without compromising on performance quality.

Who Under Armour Outlet suits best

This retailer works best for value hunters who want recognized brand names at discounted prices. You'll appreciate the outlet if you train across multiple sports and need varied gear types. The selection suits people comfortable buying previous season colors and styles rather than latest releases.

Delivery, returns and extras

Standard UK delivery costs £4.99, with free shipping on orders over £50. You get 60 days to return items for refund or exchange. The outlet runs a loyalty program that earns you points on purchases, redeemable for future discounts.

5. Fabletics UK

Fabletics UK operates on a membership-based model that rewards regular shoppers with significant discounts. The American brand entered the UK market with a focus on affordable activewear that doesn't sacrifice style or comfort. You can shop as a guest or join their VIP membership program for access to lower prices. The site stocks sizes from XXS to 4X, making it one of the more inclusive options for men's activewear uk shoppers across different body types.

Key men's activewear at Fabletics UK

Your selection includes performance shorts, training tops, and joggers designed for gym workouts and casual wear. Fabletics emphasizes moisture-wicking fabrics and four-way stretch materials across their men's range. The collection features fitted tees for lifting, breathable tanks for cardio, and layering hoodies for warm-ups. You'll find coordinated sets that match tops with bottoms, simplifying outfit planning for your training sessions.

Deals, discounts and price range

VIP members pay approximately £20-40 for most items, while guest prices range £40-60 for the same products. New members often get 50% off their first order plus two pairs of leggings for £24 as an introductory offer. The membership costs £44.95 monthly, which converts to store credit if you skip the month. Sales reach up to 80% off during clearance events.

Membership pricing cuts costs nearly in half compared to guest shopping, making regular purchases more economical.

Who Fabletics UK suits best

This retailer works for frequent buyers who purchase activewear monthly and want consistent savings. You'll benefit from membership if you value affordable basics over premium technical features. The inclusive sizing appeals to shoppers who struggle finding extended sizes elsewhere.

Delivery, returns and extras

Free delivery applies to VIP member orders, while guests pay £5.99 for standard shipping. You get 45 days to return items for exchange or refund. The membership can be cancelled anytime without penalties or commitments.

6. Decathlon

Decathlon brings French sporting goods expertise to the UK market with an emphasis on affordability across every sport category. The retailer operates both physical stores and online channels, selling their own-brand products developed by in-house design teams. You access gear for dozens of sports at prices significantly below mainstream brands. Their business model focuses on volume sales and vertical integration, controlling everything from design to retail.

Key men's activewear at Decathlon

Your options span sport-specific collections rather than general activewear. Each sport gets dedicated ranges with appropriate fabrics and fits. Running gear includes breathable tees and shorts with minimal seams under the Kalenji brand. Gym training items fall under Domyos, offering compression tops and training joggers with reinforced stitching. The site stocks base layers for cycling, hiking gear under Quechua, and football training wear. You'll find multi-sport basics that work across activities if you don't need sport-specific features. Sizes run practical rather than fashion-forward, prioritizing function over fitted silhouettes.

Deals, discounts and price range

Prices start at £3 for basic training tees and rarely exceed £40 for technical jackets. Decathlon maintains consistently low prices year-round rather than relying on sale events. Clearance sections offer further reductions on discontinued colors and previous season items. The affordability makes this one of the most budget-friendly men's activewear uk retailers without requiring membership programs or minimum orders.

Year-round low pricing removes the need to wait for sales or track discount codes when shopping for men's activewear uk essentials.

Who Decathlon suits best

This retailer works for multi-sport participants who need varied gear types without premium pricing. You'll appreciate Decathlon if you value practical function over brand recognition and don't mind simpler styling. Budget-conscious shoppers and families buying multiple items benefit most from their pricing structure.

Delivery, returns and extras

Standard delivery costs £3.99, with free next-day click and collect at participating stores. You get 365 days to return items, one of the longest return windows among UK activewear retailers. The extended period lets you test gear through full seasons before committing.

7. ASOS

ASOS operates as a fashion-focused marketplace stocking hundreds of brands alongside their own label activewear. The platform gives you access to both mainstream sportswear names and emerging brands in one checkout. Your shopping experience centers around trend-driven designs rather than pure performance technology. The site refreshes inventory constantly with new styles and seasonal collections, making it a destination for fashion-conscious gym goers who want their workout clothes to reflect current trends.

Key men's activewear at ASOS

Your selection spans multiple brand categories from budget basics to premium labels. ASOS stocks Nike, Adidas, Puma, and New Balance alongside their own 4505 activewear line designed specifically for training. You'll find fashion-forward joggers, graphic training tees, and coordinated sets that work both in the gym and as streetwear. The marketplace model means you can compare styles across brands without visiting separate sites. Training gear leans toward fitted silhouettes and bold colorways rather than technical minimalism.

Deals, discounts and price range

Prices vary dramatically based on brand, starting at £8 for basic own-brand tees and reaching £90 for premium branded pieces. ASOS runs regular discount codes through email signups and app notifications, typically offering 10-20% off. Student discount through UNiDAYS provides 10% off most items. Sale sections update weekly with reductions up to 70% during seasonal clearances.

Multiple brand options under one checkout simplify finding the right balance between style and budget for men's activewear uk shoppers.

Who ASOS suits best

This retailer works for style-conscious shoppers who want activewear that transitions from gym to casual wear. You'll appreciate ASOS if you value brand variety and follow fashion trends in sportswear. The platform suits people comparing multiple brands before committing to a purchase.

Delivery, returns and extras

Free delivery applies to orders over £35, with express options available for next-day shipping. You get 28 days to return items for refund or exchange. ASOS Premier membership costs £9.95 annually, providing unlimited next-day delivery and extended return windows.

8. Next

Next brings high street retail reliability to men's activewear uk shopping with a focus on accessible basics and family-friendly pricing. The established British retailer offers own-brand sportswear alongside selected mainstream brands in their sports department. Your shopping experience mirrors their fashion approach, prioritizing versatile pieces that work for casual gym sessions rather than competitive training. Next maintains consistent quality across price points without pushing technical innovation.

Key men's activewear at Next

The collection centers on wardrobe essentials like plain training tees, basic shorts, and comfortable joggers in neutral colors. You'll find moisture-wicking fabrics in their performance range and cotton blends for general wear. Zip-up hoodies and track pants dominate their layering options. The selection stays deliberately simple, avoiding sport-specific features or compression technologies found at specialist retailers.

Deals, discounts and price range

Prices range from £8 for basic tees to £35 for jackets, making Next one of the more affordable mainstream options. Regular sales offer 20-30% reductions on selected activewear items. Student discount isn't prominently featured, but seasonal clearances bring further price drops.

Who Next suits best

This retailer works for casual gym users who want reliable basics without premium branding. You'll appreciate Next if you prioritize convenient shopping over specialized performance features.

Next day delivery and free returns match the convenience people expect from established high street men's activewear uk retailers.

Delivery, returns and extras

Next day delivery and free returns arrive as standard features across most orders. Collection points provide flexible pickup options when home delivery doesn't suit your schedule.

Final thoughts

Your search for men's activewear uk retailers now has clear direction. Each site brings distinct advantages based on your training frequency, budget, and style preferences. Take a Hike UK delivers practical gear for multi-activity users who want quality without premium brand markup. Gymshark and Castore target performance-focused shoppers willing to invest in technical fabrics. Under Armour Outlet and Decathlon prioritize affordability without sacrificing functional features. ASOS brings brand variety for style-conscious buyers, while Next offers reliable basics for casual gym sessions.

Budget matters less than matching your specific training habits to the right retailer. Someone training five days weekly benefits from Fabletics membership savings or Gymshark's community focus. Casual users find everything needed at Next or Decathlon without overspending on features they won't use. People who camp, hike, and train need the multi-purpose breadth that stores like Take a Hike UK provide.

Ready to upgrade your workout wardrobe? Browse practical activewear and outdoor gear at Take a Hike UK where function meets value across multiple activities.