Skip to search results
loaded 2288 results
Fitness
(2,288 products)Products (2288)
Filter
- Training (1808)
- Workout Clothing (1149)
- Cross-Training Shoes (16)
- Swimming (441)
- Women's Swimwear (289)
- Men's Swimwear (168)
- Yoga (93)
- Men's Yoga Clothing (11)
- Yoga Gear (3)
- Triathlon (47)
- Indoor Cycling (28)
- Indoor Cycling Shoes (15)
- Bike Trainers (13)
- Beyond Yoga (56)
- Brooks (72)
- Patagonia (102)
- prAna (110)
- REI Co-op (85)
- Smartwool (67)
- Vuori (118)
- adidas (13)
- alder (3)
- ALPS Mountaineering (1)
- Altra (2)
- ALWRLD (32)
- Amphipod (13)
- Andie (4)
- Arc'teryx (42)
- Beyond Yoga (56)
- BioLite (1)
- Birkenstock (10)
- Black Diamond (5)
- BOB Gear (1)
- Bobo's Oat Bars (7)
- Bodyglide (5)
- Boody Eco Wear (3)
- BOTE (1)
- Brooks (72)
- Burley (6)
- CamelBak (14)
- Carve Designs (37)
- Casio (3)
- CEP (6)
- CGear Multimats (1)
- Chamois Butt'r (1)
- Chubbies (15)
- Clif (5)
- Columbia (20)
- COROS (8)
- Cotopaxi (6)
- Craft (29)
- Cure Hydration (2)
- Eagle Creek (3)
- Fair Harbor (9)
- Feedback Sports (1)
- Fishe (6)
- Fjallraven (5)
- FlipBelt (2)
- Fox (4)
- FP Movement (21)
- Free Country (27)
- Free Fly (9)
- Garmin (49)
- Gazelle (1)
- Glyder (21)
- Gnarly Nutrition (5)
- GOREWEAR (11)
- Grayl (4)
- Gregory (11)
- Gripmaster (3)
- GU (12)
- Helly Hansen (18)
- Herschel Supply Co. (7)
- Hibear (1)
- HOKA (9)
- Honey Stinger (13)
- Huma Gel (1)
- Hurley (5)
- Hydaway (1)
- HydraPak (7)
- Hydro Flask (13)
- Hyperice (11)
- Icebreaker (10)
- ISM (1)
- Janji (37)
- JBL (8)
- Jelly Belly (2)
- JOLYN (5)
- Kari Traa (12)
- Katadyn (3)
- Kate's Real Food (6)
- Klean Kanteen (9)
- KUHL (1)
- La Sportiva (1)
- LifeStraw (8)
- Lole (1)
- Look (3)
- Mammut (1)
- Marmot (1)
- Merrell (1)
- Metolius (1)
- Mons Royale (1)
- Monster (2)
- Mountain Hardwear (8)
- Muir Energy (1)
- Nalgene (3)
- Nani Swimwear (30)
- Nathan (28)
- NEMO (4)
- Nike (17)
- Nite Ize (2)
- Nomadix (2)
- NRS (27)
- NUUN (9)
- O'Neill (41)
- Oboz (1)
- Ocean Bottle (3)
- Oiselle (26)
- On (52)
- OOFOS (18)
- Osprey (13)
- Outdoor Research (11)
- Oya Femtech Apparel (3)
- Panache Sport (4)
- Patagonia (102)
- Peak Design (3)
- PEARL iZUMi (1)
- Picture Organic Clothing (2)
- Plant People (5)
- Platypus (3)
- Polar (5)
- prAna (110)
- Pro-Tec Athletics (21)
- PROBAR (3)
- Profile (3)
- Purist (2)
- PYNRS (10)
- Quantum Energy Squares (1)
- Rab (8)
- rabbit (49)
- Reef (1)
- REI Co-op (85)
- RHONE (25)
- Roark (21)
- RockTape (1)
- RONHILL (21)
- Roxy (17)
- Salewa (1)
- Salomon (49)
- SaltStick (4)
- Saucony (3)
- Saxx (5)
- Sealskinz (1)
- SEPTEMBER (6)
- Shimano (7)
- Shokz (9)
- Skratch Labs (6)
- Skullcandy (13)
- Smartwool (67)
- So iLL (2)
- Soundcore by Anker (4)
- Splash Place (1)
- Spring Energy (1)
- Squirrels Nut Butter (3)
- SRAM (2)
- Stanley (4)
- Stio (7)
- Suunto (10)
- Sweaty Betty (12)
- Tahoe Trail Bar (1)
- Tailwind Nutrition (8)
- tasc Performance (11)
- Ten Thousand (9)
- THE GEOPROJECT (1)
- The North Face (42)
- Threads 4 Thought (13)
- Thule (48)
- TIEM (4)
- Tiger Tail USA (6)
- Timex (4)
- Toad&Co (1)
- TomboyX (12)
- Topo Athletic (2)
- Topo Designs (1)
- Trigger Point Performance (13)
- TYR (38)
- UltrAspire (2)
- Umbo (1)
- Under Armour (10)
- UPPAbaby (7)
- Veer (42)
- VISSLA (13)
- Vittoria (1)
- Vivobarefoot (3)
- VOLCOM (1)
- Vuori (118)
- Wahoo Fitness (10)
- Xero Shoes (4)
- YES Bar (1)
- YETI (12)
- Zensah (1)
- Zipp (1)
- Sleeveless (109)
- Cap Sleeve (2)
- Short Sleeve (157)
- Long Sleeve (290)
- Active Pursuits (21)
- AFO (3)
- Aion (1)
- Allpa (3)
- Alpenglow (1)
- Arcane (1)
- Arizona (6)
- Baggies (6)
- Base Camp (11)
- Beach Classics (1)
- Becksa (2)
- BeFree (3)
- Big Haul (5)
- Black Hole (4)
- Bloks (2)
- Bondi (2)
- Camp (2)
- Capilene (19)
- Chariot (12)
- Chaser (5)
- Chute Mag (2)
- Class V (2)
- Clementine (1)
- ColdGear (2)
- Cormac (10)
- Cruiser (12)
- Dare (1)
- Daylite (3)
- Delta (10)
- Distance (6)
- Eddy (2)
- Element (1)
- Enduro (1)
- epix (2)
- EZ (15)
- Fenix (6)
- Ferrosi (1)
- Forerunner (5)
- Foundation (1)
- G-Shock (3)
- Glide (6)
- Go Series (5)
- Groundwork (2)
- Halo (13)
- Headlamp (1)
- HeatGear (3)
- High Coast (2)
- Houdini (4)
- Hydropeak (7)
- Hyperfreak (10)
- Hypervolt (3)
- IceFlow (4)
- Incendo (4)
- inReach (1)
- Instinct (4)
- Intraknit (14)
- Ironman (3)
- Kanken (1)
- KICKR (6)
- Launch (2)
- Liquid Energy (1)
- Maipo (7)
- Mayari (1)
- Merino Sport (5)
- Nano-Air (1)
- Norvan (10)
- Opt Outside (2)
- Ora (4)
- Own The Run (7)
- PFG (14)
- Ponto (6)
- R1 (9)
- Rambler (6)
- Renew (8)
- Roadtripper (4)
- Roctane (2)
- Roundtrip (2)
- Sahara (4)
- Sleek (6)
- Spacedye (38)
- Strider (2)
- Stryder (1)
- Summit Series (6)
- Sunriser (10)
- Supply (5)
- Sustain (16)
- Swiftland (30)
- Switchback (12)
- Tacx (4)
- Take Your Time (1)
- Tarn (1)
- Terrebonne (3)
- Terrex (4)
- Trail Glove (1)
- Trailmade (2)
- Transporter (6)
- Twisted (3)
- Venu (3)
- Vivo (2)
- Wavefarer (2)
- Winter Warm (3)
- XC (1)
- Yonder (6)
- Deals (888)
- Moisture Wicking (843)
- Quick Drying (789)
- Top Rated (566)
- Sun-Protective Fabric (471)
- Made in USA (176)
- New Arrivals (147)
- Thumbholes (135)
- BPA Free (100)
- Merino Wool (92)
- Packable (86)
- Reflective (82)
- Vegan (80)
- Backpack Straps (76)
- Gluten Free (75)
- Vegetarian (68)
- Insulated (64)
- Removable Cups (63)
- HRM Included/Integrated (60)
- Adjustable Straps (57)
- Wireless Sync (56)
- Swimming Functions (54)
- Non-GMO (53)
- Tracks Steps (53)
- Smart Device Notifications (52)
- Sleep Tracking (52)
- Tracks Distance (51)
- Tracks Calories Burned (51)
- Tracks Speed (49)
- Cycling Functions (49)
- Compass (48)
- VO2 Max Estimate (46)
- Pulse Oximeter (44)
- Fits In Cup Holder (40)
- Programmable Routes (39)
- Wireless (37)
- Volume Control (33)
- Waterproof (29)
- Compression (28)
- Carry-On (27)
- Back Closure (23)
- Organic (22)
- Adjustable Handle (16)
- SPD Compatible (14)
- Parking Brake (12)
- Field Cleanable (11)
- Solar-Powered (10)
- Look Mountain Compatible (10)
- 2-Way Zipper (9)
- Collapsible (9)
- Laptop Compartment (8)
- Traction Tread (8)
- Time Mountain Compatible (8)
- Crankbrothers Compatible (8)
- Reclining (7)
- Regulated Output (5)
- Optional Conversion (5)
- Software Controlled (5)
- Red Light Mode (4)
- Foldable (4)
- Lap Timer (4)
- Preloaded Geocaches (4)
- Running Brake (4)
- Underwire (3)
- User Replaceable Battery (3)
- Side Cargo Pockets (3)
- Ultralight (2)
- iPad / Tablet Compartment (2)
- Time Road Compatible (1)
- Speedplay Compatible (1)
- SPD-SL Compatible (1)
- Look Road Compatible (1)
- Biodegradable (1)
- Cutout Seat (1)
- Insect Repellent (1)
- bluesign (164)
- Certified Organic (15)
- Climate Label Certified (203)
- Climate Neutral Certified (24)
- Fair Trade (213)
- Organic Fibers (22)
- Recycled Materials (810)
- Responsibly Sourced Wool (5)
- Solid (968)
- Novelty (99)
- Striped (59)
- Floral (57)
- Colorblock (50)
- Graphic (42)
- Print (41)
- Camouflage (17)
- Tie Dye (4)
- Plaid (3)
- XXS (52)
- XS (884)
- Small (1113)
- Medium (1062)
- Large (1094)
- XL (1084)
- 00 (2)
- 0 (4)
- 2 (27)
- 3 (3)
- 4 (37)
- 4.5 (1)
- 5 (19)
- 5.5 (2)
- 6 (61)
- 6.5 (22)
- 7 (38)
- 7.5 (22)
- 8 (80)
- 8.5 (31)
- 9 (57)
- 9.5 (33)
- 10 (83)
- 10.5 (20)
- 11 (51)
- 11.5 (13)
- 12 (58)
- 12.5 (10)
- 13 (24)
- 14 (38)
- 15 (11)
- 16 (17)
- 28 (5)
- 30 (7)
- 32 (7)
- 34 (5)
- 36 (5)
- 38 (5)
- 40 (4)
- 14W (1)
- 18W (10)
- 1X (38)
- 20W (9)
- 22W (8)
- 24W (9)
- 26W (14)
- 28 Waist (23)
- 29 Waist (18)
- 2X (39)
- 2XL (633)
- 30 A/B (1)
- 30 C/D (1)
- 30 Waist (32)
- 31 Waist (17)
- 32 A/B (1)
- 32 B (1)
- 32 C (4)
- 32 C/D (1)
- 32 D (6)
- 32 DD (5)
- 32 DD/E (1)
- 32 E (3)
- 32 F (3)
- 32 FF (3)
- 32 G (3)
- 32 GG (3)
- 32 H (3)
- 32 HH (1)
- 32 J (1)
- 32 Waist (30)
- 33 Waist (17)
- 34 A/B (1)
- 34 B (1)
- 34 C (4)
- 34 C/D (1)
- 34 D (6)
- 34 DD (4)
- 34 DD/E (1)
- 34 E (5)
- 34 F (4)
- 34 FF (2)
- 34 G (1)
- 34 GG (3)
- 34 H (2)
- 34 HH (1)
- 34 J (1)
- 34 Waist (29)
- 35 Waist (7)
- 36 A/B (1)
- 36 B (1)
- 36 C (4)
- 36 C/D (1)
- 36 D (5)
- 36 DD (7)
- 36 DD/E (1)
- 36 E (3)
- 36 F (4)
- 36 FF (3)
- 36 G (3)
- 36 GG (3)
- 36 H (2)
- 36 HH (1)
- 36 Waist (23)
- 38 A/B (1)
- 38 B (1)
- 38 C (5)
- 38 C/D (1)
- 38 D (8)
- 38 DD (8)
- 38 DD/E (1)
- 38 E (5)
- 38 F (5)
- 38 FF (4)
- 38 G (4)
- 38 GG (3)
- 38 H (2)
- 38 Waist (29)
- 3X (39)
- 3XL (79)
- 40 A/B (1)
- 40 B (1)
- 40 C (3)
- 40 C/D (1)
- 40 D (6)
- 40 DD (4)
- 40 DD/E (1)
- 40 E (4)
- 40 F (5)
- 40 FF (4)
- 40 G (2)
- 40 GG (1)
- 40 Waist (15)
- 42 E (1)
- 42 F (1)
- 42 FF (1)
- 42 G (1)
- 42 Waist (4)
- 44 Waist (8)
- 4X (3)
- 4XL (2)
- 5X (4)
- 6X (6)
- L A-C (1)
- L D-DD (1)
- M - XL (1)
- M A-C (1)
- M D-DD (1)
- One Size (10)
- S A-C (1)
- Small D/DD (1)
- XL A-C (1)
- XS A-C (1)
- XS D-DD (1)
- XXS A-C (2)
- XXS C/D (1)
- XXS D-DD (1)
- 0 to 0.49 (466)
- 0.5 to 0.99 (212)
- 1 to 1.49 (70)
- 1.50 to 2.99 (96)
- 3 to 4.99 (41)
- 5 to 7.99 (9)
- 8 to 11.99 (2)
- 12 to 19.99 (3)
- 20 to 29.99 (9)
- 30 to 49.99 (10)
- 50 to 74.99 (2)
- 100 to 1000 (1)
- $0.00 to $9.99 (80)
- $10.00 to $19.99 (62)
- $20.00 to $49.99 (759)
- $50.00 to $99.99 (933)
- $100.00 to $199.99 (409)
- $200.00 to $499.99 (99)
- $500.00 to $749.99 (16)
- $750.00 to $999.99 (13)
- $1000.00 to $1999.99 (20)
- $2000.00 to $5000.00 (2)
- Cotton / Cotton Blend (34)
- Wool / Wool Blend (83)
- Hemp / Linen / Blend (1)
- Nylon / Nylon Blend (409)
- Polyester / Polyester Blend (1012)
- Rayon / Rayon Blend (23)
Sort: Best Match
View:
- CEPUltralight Calf Sleeves$39.95(1)1 reviews with an average rating of 5.0 out of 5 stars
- SmartwoolActive Fleece Wind Pants - Women'sTop Rated$180.00(15)15 reviews with an average rating of 4.5 out of 5 stars
- prAnaRepeater Half-Zip Top - Men's$56.73Save 42%compared to $99.00(2)2 reviews with an average rating of 2.5 out of 5 starsREI OUTLET
- Squirrels Nut ButterAnti-Chafe Salve Compostable Tube - 2.0 oz.$17.95(3)3 reviews with an average rating of 5.0 out of 5 stars
- IcebreakerMerino 260 Quantum Long-Sleeve Zip Hoodie - Men's$240.00(15)15 reviews with an average rating of 3.3 out of 5 stars
- rabbitFuel N' Fly 5" Shorts - Men's$75.00(3)3 reviews with an average rating of 3.3 out of 5 stars
- Sweaty BettySilhouette Seamless Leggings - Women's$69.73Save 40%compared to $118.00(47)47 reviews with an average rating of 3.7 out of 5 starsREI OUTLET
- JanjiSunchaser 50 Hooded Long-Sleeve Shirt - Women's$82.00 - $88.00(11)11 reviews with an average rating of 4.3 out of 5 stars
- ThuleUrban Glide 3 Maxi-Cosi Car Seat Adapter$69.95(0)0 reviews
- TimexIronman 100-Lap Digital Watch - Men's$87.00(71)71 reviews with an average rating of 4.4 out of 5 stars
- Suunto9 Peak Pro$249.00(17)17 reviews with an average rating of 3.6 out of 5 stars
- LifeStrawGo Series Insulated Stainless-Steel Water Filter Bottle - 34 fl. oz.$64.95(80)80 reviews with an average rating of 4.2 out of 5 stars
- RHONEPursuit 7" Lined Shorts - Men'sTop Rated$84.00(89)89 reviews with an average rating of 4.8 out of 5 stars
- SuuntoRace S$349.00(12)12 reviews with an average rating of 3.3 out of 5 stars
- Wahoo FitnessTICKR FIT Optical Heart Rate Monitor$90.00(526)526 reviews with an average rating of 4.3 out of 5 stars
- SmartwoolActive Fleece Wind Half-Zip Pullover - Women'sTop Rated$175.00(5)5 reviews with an average rating of 4.6 out of 5 stars
- VeerFoldable Rear Basket XL$99.00(2)2 reviews with an average rating of 4.5 out of 5 stars
- rabbitEZ Tee Perf ICE Long-Sleeve Shirt - Men's$55.00(3)3 reviews with an average rating of 5.0 out of 5 stars
- Carve DesignsManu Tank Top - Women's$29.83Save 50%compared to $60.00(3)3 reviews with an average rating of 4.0 out of 5 stars
- OOFOSOOmy Stride Shoes - Men's$159.95(0)0 reviews
- TYRErgo Swim Nose Clip$9.00(19)19 reviews with an average rating of 3.1 out of 5 stars
- Sweaty BettyJacquard Base Layer Leggings - Women's$82.73Save 29%compared to $118.00(26)26 reviews with an average rating of 4.0 out of 5 starsREI OUTLET
- rabbitUPF T-Shirt - Women's$55.00(2)2 reviews with an average rating of 5.0 out of 5 stars
- Beyond YogaSpacedye High-Waisted Practice Pants - Women's$99.00(424)424 reviews with an average rating of 4.5 out of 5 stars
- HypericeHypervolt 2 Bluetooth MassagerTop Rated$229.00(139)139 reviews with an average rating of 4.6 out of 5 stars
- GripmasterPro Hand Strengthener - Extra-Heavy TensionTop Rated$26.95(17)17 reviews with an average rating of 4.6 out of 5 stars
- PROBARProtein Bar$3.00(32)32 reviews with an average rating of 3.8 out of 5 stars
- ChubbiesSet Hoodie - Men's$58.93 - $84.50(4)4 reviews with an average rating of 5.0 out of 5 stars
- OnCore Long-T Shirt - Men's$70.00(0)0 reviews
- tasc PerformanceNOLA 2.0 Tank Top$44.00(0)0 reviews
961–990 of 2,288 products
Sort: Best Match
Related Expert Advice articles
REI Co-op staffers share their favorite mats, blocks, cleaner and apparel for yoga. Find the perfect yoga gear for your home or studio practice.
There’s a fitness tracker for every user and every budget. Check out our top picks for hiking, running and more.
Whether they love the trail or just get out in the city for a quick jog, find the perfect gift for the runner in your life.
Our guide to gear and clothing will get you up and running (and swimming and biking) for your next triathlon.
Here are our favorite reusable water bottles for hiking, running, cycling, everyday use and more. Find the best water bottle at REI from YETI, Hydro Flask, Ocean Bottle and more.
Read full article: The 11 Best Water Bottles of 2025: Staff Picks
It’s not hard to find active swimwear that is both functional and flattering. Get tips on what to look for when choosing men's and women's swimsuits.