Skip to search results
loaded 3222 results
Fitness
(3,222 products)Products (3222)
Filter
- Running (2166)
- Running Clothes (1048)
- Running Shoes (572)
- Fitness Electronics (129)
- Running Packs (117)
- Energy Food and Drinks (102)
- Running Safety (24)
- Training (1690)
- Workout Clothing (1032)
- Cross-Training Shoes (18)
- Swimming (484)
- Women's Swimwear (321)
- Men's Swimwear (180)
- Yoga (189)
- Men's Yoga Clothing (10)
- Yoga Gear (2)
- Triathlon (44)
- Indoor Cycling (27)
- Bike Trainers (15)
- Indoor Cycling Shoes (12)
- Brooks (142)
- On (85)
- Patagonia (106)
- prAna (91)
- REI Co-op (106)
- Smartwool (87)
- Vuori (114)
- adidas (63)
- alder (5)
- ALES GREY (1)
- ALPS Mountaineering (1)
- Altra (68)
- ALWRLD (29)
- Amphipod (28)
- Andie (4)
- Arc'teryx (61)
- ASICS (24)
- Balega (12)
- Beyond Yoga (49)
- BioLite (1)
- Birkenstock (11)
- Black Diamond (9)
- BOB Gear (2)
- Bobo's Oat Bars (6)
- Bodyglide (5)
- Boody Eco Wear (4)
- BOTE (1)
- Brooks (142)
- Burley (7)
- CamelBak (13)
- Carve Designs (40)
- Casio (5)
- CEP (8)
- CGear Multimats (1)
- Chamois Butt'r (4)
- Chubbies (15)
- ciele athletics (6)
- Clif (5)
- Columbia (27)
- Conscious Gear (1)
- COROS (8)
- Cotopaxi (6)
- Craft (45)
- Cross Point Gear (2)
- CTR (1)
- Cure Hydration (2)
- Darn Tough (25)
- Eagle Creek (3)
- Fair Harbor (9)
- Feedback Sports (1)
- Feetures (3)
- Fishe (7)
- Fjallraven (1)
- FlipBelt (2)
- Fox (5)
- FP Movement (15)
- Free Country (30)
- Free Fly (8)
- Garmin (42)
- Gazelle (1)
- Glyder (21)
- Gnarly Nutrition (5)
- GOREWEAR (10)
- Grayl (4)
- Gregory (12)
- Gripmaster (3)
- GU (12)
- Headlightz (2)
- Helly Hansen (26)
- Herschel Supply Co. (1)
- Hibear (1)
- Hilly (6)
- Hilma Running (2)
- HOKA (63)
- Honey Stinger (13)
- Huma Gel (1)
- Hurley (6)
- Hydaway (3)
- HydraPak (11)
- Hydro Flask (11)
- Hyperice (11)
- Icebreaker (14)
- Injinji (12)
- ISM (1)
- Janji (42)
- JBL (7)
- Jelly Belly (2)
- JOLYN (5)
- Kahtoola (2)
- Kari Traa (16)
- Katadyn (3)
- Kate's Real Food (6)
- KATHERINE HOMES (1)
- KEEN (2)
- Klean Kanteen (11)
- KUHL (1)
- La Sportiva (34)
- Lenny & Larry's (2)
- LifeStraw (10)
- Lole (1)
- Look (3)
- Lorpen (1)
- Lowa (4)
- Mammut (5)
- Maurten (5)
- melin (3)
- Merrell (29)
- Metolius (1)
- Mons Royale (1)
- Monster (2)
- Mountain Equipment (1)
- Mountain Hardwear (10)
- Muir Energy (1)
- Nalgene (3)
- Nani Swimwear (42)
- Nathan (66)
- NEMO (4)
- New Balance (21)
- Nike (37)
- Nite Ize (2)
- NNormal (4)
- Nomadix (2)
- norda (7)
- NRS (31)
- NUUN (9)
- O'Neill (50)
- Oboz (1)
- Ocean Bottle (3)
- Oiselle (15)
- On (85)
- OOFOS (18)
- Osprey (21)
- Outdoor Research (20)
- Owala (3)
- Oya Femtech Apparel (3)
- Panache Sport (3)
- Patagonia (106)
- Peak Design (3)
- PEARL iZUMi (3)
- Petzl (1)
- Picture Organic Clothing (3)
- Plant People (5)
- Platypus (3)
- Polar (5)
- prAna (91)
- Pro-Tec Athletics (21)
- PROBAR (3)
- Profile (2)
- Purist (2)
- PYNRS (11)
- Quantum Energy Squares (1)
- rabbit (36)
- Reef (1)
- REI Co-op (106)
- RHONE (25)
- Roark (19)
- RockTape (2)
- RONHILL (27)
- Roxy (19)
- Ruffwear (2)
- Salewa (1)
- Salomon (66)
- SaltStick (4)
- Saucony (47)
- Saxx (5)
- Saysh (1)
- Sealskinz (3)
- Seirus (1)
- SEPTEMBER (6)
- Shimano (4)
- Shokz (8)
- Skratch Labs (6)
- Skullcandy (15)
- Smartwool (87)
- So iLL (2)
- Sockwell (4)
- Splash Place (1)
- Spring Energy (1)
- Squirrels Nut Butter (4)
- SRAM (1)
- Stance (48)
- Stanley (6)
- Stio (10)
- Sunday Afternoons (1)
- Suunto (10)
- Sweaty Betty (15)
- Swiftwick (8)
- Swix (9)
- Tahoe Trail Bar (1)
- Tailwind Nutrition (9)
- tasc Performance (11)
- Ten Thousand (6)
- Teva (4)
- The North Face (65)
- Threads 4 Thought (13)
- Thule (54)
- TIEM (4)
- Tiger Tail USA (7)
- Timex (6)
- Toad&Co (1)
- TomboyX (18)
- Topo Athletic (33)
- Topo Designs (2)
- ToughCutie (1)
- Trigger Point Performance (14)
- TYR (41)
- Ultimate Direction (9)
- UltrAspire (11)
- Umbo (1)
- Under Armour (10)
- UPPAbaby (4)
- Veer (42)
- VEJA (3)
- VISSLA (17)
- Vitalyte (1)
- Vittoria (1)
- Vivobarefoot (14)
- Vuori (114)
- Wahoo Fitness (13)
- WhitePaws RunMitts (2)
- WRIGHTSOCK (6)
- Xero Shoes (10)
- YES Bar (1)
- YETI (12)
- Zensah (3)
- Zipp (1)
- Active Pursuits (23)
- ActiveIce (3)
- Adrenaline (6)
- AFO (6)
- Aion (1)
- Allpa (3)
- Alpenglow (1)
- Aphrodite (1)
- Arahi (4)
- Arcane (1)
- Arizona (6)
- Baggies (6)
- Base Camp (8)
- Beach Classics (1)
- Becksa (2)
- BeFree (3)
- Big Haul (5)
- Black Hole (4)
- Bloks (2)
- Bondi (4)
- Bushido (7)
- Caldera (4)
- Camp (2)
- Capilene (19)
- Cascadia (3)
- Catamount (3)
- Challenger (7)
- Chariot (12)
- Chaser (5)
- Chute Mag (2)
- Class V (2)
- Clementine (2)
- Clifton (11)
- Cloud (4)
- Cloudflyer (2)
- Cloudsurfer (12)
- Cloudswift (4)
- ColdGear (2)
- Cormac (10)
- Cruiser (12)
- Dare (1)
- Daylite (3)
- Delta (8)
- Distance (9)
- Eddy (3)
- Enduro (1)
- epix (2)
- Escalante (5)
- Everyday (1)
- Experience (8)
- EZ (13)
- Fenix (4)
- Ferrosi (1)
- Flash (2)
- Forerunner (7)
- Foundation (1)
- G-Shock (5)
- Gaviota (2)
- GEL-Cumulus (2)
- GEL-Kayano (3)
- GEL-Nimbus (2)
- Ghost (18)
- Glide (7)
- Glycerin (16)
- Go Series (5)
- Groundwork (3)
- Halo (10)
- Headlamp (1)
- HeatGear (3)
- Houdini (4)
- Hydropeak (7)
- Hyperfreak (15)
- Hyperion (4)
- Hypervolt (3)
- IceFlow (6)
- Incendo (4)
- Instinct (5)
- Intraknit (16)
- Ironman (5)
- Jackal (2)
- Kanken (1)
- KICKR (8)
- Launch (4)
- Liquid Energy (1)
- Lone Peak (5)
- Mach (4)
- Mafate (5)
- Maipo (8)
- Mayari (1)
- Merino Sport (4)
- MTL (7)
- Nano-Air (1)
- Norvan (18)
- Opt Outside (2)
- Ora (5)
- Own The Run (14)
- Peregrine (3)
- Performance (17)
- PFG (18)
- Ponto (5)
- R1 (7)
- Rainrunner (2)
- Rambler (6)
- Renew (10)
- Revel (4)
- Rincon (4)
- Roadtripper (4)
- Roctane (2)
- Roundtrip (2)
- Sahara (4)
- Sherpa (6)
- Sleek (7)
- Spacedye (32)
- Speedcross (5)
- Speedgoat (5)
- Stinson (2)
- Strider (4)
- Stryder (1)
- Summit Series (11)
- Sunriser (14)
- Superior (6)
- Supply (7)
- Sustain (10)
- Swiftland (50)
- Switchback (14)
- Tacx (4)
- Take Your Time (1)
- Terrebonne (3)
- Terrex (13)
- Thundercross (2)
- Timp (6)
- Torin (7)
- Torrent (2)
- Trail Glove (3)
- Trailmade (2)
- Transporter (7)
- Twisted (3)
- Vectiv (8)
- Venu (3)
- Vivo (1)
- Wavefarer (2)
- Wildcat (4)
- Winter Warm (2)
- Yonder (6)
- Deals (1144)
- Wool (1)
- Wool / Wool Blend (142)
- Acrylic / Acrylic Blend (5)
- Cotton / Cotton Blend (33)
- Hemp / Linen / Blend (1)
- Nylon / Nylon Blend (481)
- Polyester / Polyester Blend (1136)
- Polypropylene / Polypropylene Blend (1)
- Rayon / Rayon Blend (23)
- Synthetic Blend (7)
- Solid (1008)
- Novelty (131)
- Floral (67)
- Striped (64)
- Colorblock (58)
- Print (44)
- Graphic (42)
- Camouflage (21)
- Tie Dye (4)
- Plaid (4)
- Running (1395)
- Fitness (1094)
- Trail Running (502)
- Multisport (307)
- Swimming (243)
- Watersports (225)
- Hiking (149)
- Casual (144)
- Travel (105)
- Walking (84)
- Yoga (77)
- Fitness Recovery (61)
- Cycling (43)
- Fishing (35)
- Camping (33)
- Indoor Cycling (28)
- Backpacking (16)
- Cross-country Skiing (14)
- Paddling (10)
- Surfing (9)
- Snowsports (9)
- Climbing (9)
- Triathlon (7)
- Road Cycling (7)
- Mountain Biking (4)
- Bouldering (2)
- Scuba Diving (2)
- Recreational Cycling (2)
- Snowboarding (1)
- Downhill Skiing (1)
- Rock Climbing (1)
- Moisture Wicking (1059)
- Quick Drying (962)
- Top Rated (779)
- Sun-Protective Fabric (532)
- Vegan (346)
- Made in USA (261)
- BPA Free (176)
- New Arrivals (156)
- Merino Wool (150)
- Thumbholes (135)
- Packable (94)
- Insulated (87)
- Waterproof (79)
- Gluten Free (79)
- Reflective (78)
- Vegetarian (75)
- Removable Cups (68)
- Backpack Straps (63)
- HRM Included/Integrated (55)
- Non-GMO (55)
- Adjustable Straps (55)
- Tracks Steps (50)
- Swimming Functions (49)
- Reservoir Compatible (48)
- Wireless Sync (47)
- Smart Device Notifications (47)
- Sleep Tracking (47)
- Tracks Distance (46)
- Tracks Calories Burned (46)
- Tracks Speed (45)
- Cycling Functions (45)
- Compass (45)
- Compression (44)
- VO2 Max Estimate (43)
- Fits In Cup Holder (40)
- Pulse Oximeter (39)
- Programmable Routes (37)
- Wireless (33)
- Volume Control (31)
- Bite Valve Shut-off Switch (24)
- Collapsible (24)
- Organic (22)
- Back Closure (20)
- Adjustable Handle (20)
- Carry-On (18)
- Parking Brake (14)
- Touch-Screen Compatible (14)
- Field Cleanable (13)
- Solar-Powered (11)
- SPD Compatible (11)
- Reclining (10)
- Award Winner (9)
- 2-Way Zipper (8)
- Optional Conversion (8)
- Look Mountain Compatible (7)
- Laptop Compartment (6)
- Lap Timer (6)
- Regulated Output (6)
- Software Controlled (6)
- Goggles Wipe (6)
- Traction Tread (5)
- Side Cargo Pockets (5)
- Time Mountain Compatible (5)
- Crankbrothers Compatible (5)
- Foldable (5)
- Preloaded Geocaches (4)
- Running Brake (4)
- Underwire (3)
- Red Light Mode (3)
- Ultralight (3)
- iPad / Tablet Compartment (2)
- Warmer Pockets (2)
- Cutout Seat (1)
- Biodegradable (1)
- Time Road Compatible (1)
- Speedplay Compatible (1)
- SPD-SL Compatible (1)
- Look Road Compatible (1)
- Insect Repellent (1)
- User Replaceable Battery (1)
- XXS (56)
- XS (967)
- Small (1373)
- Medium (1323)
- Large (1298)
- XL (1258)
- 00 (4)
- 0 (6)
- 1 (6)
- 2 (31)
- 3 (12)
- 4 (45)
- 4.5 (1)
- 5 (83)
- 5.5 (79)
- 6 (307)
- 6.5 (257)
- 7 (310)
- 7.5 (304)
- 8 (505)
- 8.5 (442)
- 9 (478)
- 9.5 (455)
- 10 (512)
- 10.5 (331)
- 11 (460)
- 11.5 (248)
- 12 (337)
- 12.5 (123)
- 13 (220)
- 13.5 (1)
- 14 (78)
- 14.5 (3)
- 15 (42)
- 16 (22)
- 28 (5)
- 30 (7)
- 32 (7)
- 34 (7)
- 36 (7)
- 38 (6)
- 40 (4)
- 10 X-Wide (3)
- 10.5 X-Wide (2)
- 11 X-Wide (3)
- 12 X-Wide (3)
- 18W (7)
- 1X (37)
- 20W (6)
- 22W (3)
- 24W (4)
- 26W (9)
- 28 Waist (26)
- 29 Waist (22)
- 2X (47)
- 2X/3X (1)
- 2XL (691)
- 30 A/B (1)
- 30 C/D (1)
- 30 Waist (38)
- 31 Waist (19)
- 32 A/B (1)
- 32 B (1)
- 32 C (3)
- 32 C/D (1)
- 32 D (5)
- 32 DD (5)
- 32 DD/E (1)
- 32 E (4)
- 32 F (4)
- 32 FF (3)
- 32 G (3)
- 32 GG (3)
- 32 H (3)
- 32 HH (1)
- 32 J (1)
- 32 Waist (35)
- 33 Waist (24)
- 34 A/B (1)
- 34 B (1)
- 34 C (3)
- 34 C/D (1)
- 34 D (5)
- 34 DD (5)
- 34 DD/E (1)
- 34 E (4)
- 34 F (4)
- 34 FF (3)
- 34 G (2)
- 34 GG (2)
- 34 H (2)
- 34 HH (1)
- 34 J (1)
- 34 Waist (35)
- 35 Waist (7)
- 36 A/B (1)
- 36 B (1)
- 36 C (2)
- 36 C/D (1)
- 36 D (4)
- 36 DD (6)
- 36 DD/E (1)
- 36 E (4)
- 36 F (4)
- 36 FF (3)
- 36 G (3)
- 36 GG (3)
- 36 H (2)
- 36 HH (1)
- 36 Waist (36)
- 38 A/B (1)
- 38 B (1)
- 38 C (4)
- 38 C/D (1)
- 38 D (5)
- 38 DD (6)
- 38 DD/E (1)
- 38 E (4)
- 38 F (4)
- 38 FF (3)
- 38 G (3)
- 38 GG (3)
- 38 H (2)
- 38 Waist (35)
- 3X (50)
- 3XL (95)
- 40 A/B (1)
- 40 B (1)
- 40 C (2)
- 40 C/D (1)
- 40 D (4)
- 40 DD (4)
- 40 DD/E (1)
- 40 E (4)
- 40 F (4)
- 40 FF (3)
- 40 G (3)
- 40 GG (1)
- 40 Waist (22)
- 41 Waist (1)
- 42 Waist (9)
- 44 Waist (12)
- 4X (4)
- 4XL (5)
- 5 X-Wide (2)
- 5.5 X-Wide (2)
- 5X (6)
- 6 X-Wide (2)
- 6.5 X-Wide (2)
- 6X (9)
- 7 X-Wide (2)
- 7.5 X-Wide (3)
- 8 X-Wide (3)
- 8.5 X-Wide (3)
- 9 X-Wide (3)
- 9.5 X-Wide (3)
- Earth - L/2X (1)
- L A-C (1)
- L D-DD (1)
- M A-C (1)
- M D-DD (1)
- One Size (40)
- S A-C (1)
- S D-DD (1)
- Wind - 3X/5X (1)
- XL A-C (1)
- XL C/D (1)
- XL DD/F (1)
- XS A-C (1)
- XS D-DD (1)
- XXL/XXXL (1)
- XXS A-C (1)
- XXS C/D (1)
- XXS D-DD (1)
- $0.00 to $9.99 (92)
- $10.00 to $19.99 (187)
- $20.00 to $49.99 (862)
- $50.00 to $99.99 (1107)
- $100.00 to $199.99 (863)
- $200.00 to $499.99 (138)
- $500.00 to $749.99 (19)
- $750.00 to $999.99 (17)
- $1000.00 to $1999.99 (14)
- $2000.00 to $5000.00 (3)
- bluesign (234)
- Certified Organic (15)
- Climate Label Certified (220)
- Climate Neutral Certified (74)
- Fair Trade (211)
- Organic Fibers (20)
- Recycled Materials (1170)
- Responsibly Sourced Wool (23)
- 0 to 0.49 (560)
- 0.5 to 0.99 (347)
- 1 to 1.49 (496)
- 1.50 to 2.99 (107)
- 3 to 4.99 (38)
- 5 to 7.99 (9)
- 8 to 11.99 (3)
- 12 to 19.99 (3)
- 20 to 29.99 (10)
- 30 to 49.99 (14)
- 50 to 74.99 (2)
- 75 to 99.99 (1)
- 100 to 1000 (1)
Sort: Best Match
View:
- Arc'teryxEssent High-Rise Utility 26" Leggings - Women's$83.83 - $140.00(20)20 reviews with an average rating of 3.5 out of 5 stars
- BrooksLuxe Tank Top - Women'sTop Rated$45.00(27)27 reviews with an average rating of 4.5 out of 5 stars
- The North FaceEtip Recycled Gloves - Women'sTop Rated$45.00(1541)1541 reviews with an average rating of 4.6 out of 5 stars
- AmphipodHydraform Chiller Handheld Water Bottle - 20 fl. oz.$40.00(2)2 reviews with an average rating of 5.0 out of 5 stars
- VuoriOne Shot Dress$98.00(1)1 reviews with an average rating of 5.0 out of 5 stars
- VuoriInfinity Board Shorts - Men's$70.93 - $89.00(0)0 reviews
- LifeStrawGo Series 1 L Water Filter Bottle - 33.8 fl. oz.$49.95(60)60 reviews with an average rating of 4.0 out of 5 stars
- SmartwoolActive Ultralite Hoodie - Women's$85.00(15)15 reviews with an average rating of 3.7 out of 5 stars
- NEMODouble Haul 55 L Convertible Duffel and ToteTop Rated$169.95(106)106 reviews with an average rating of 4.8 out of 5 stars
- NEMODouble Haul 30 L Convertible Duffel and ToteTop Rated$149.95(52)52 reviews with an average rating of 4.8 out of 5 stars
- SmartwoolRun Targeted Cushion Mid Crew Socks - Men's$23.00(2)2 reviews with an average rating of 3.0 out of 5 stars
- Helly HansenSolen Printed Recycled Water Shorts - Men's$35.73Save 48%compared to $70.00Members use code OUT4JUL25 for $20 off $100+ at REI Outlet(3)3 reviews with an average rating of 3.3 out of 5 starsREI OUTLET
- Ten ThousandVersatile Shirt - Men's$58.00(1313)1313 reviews with an average rating of 4.5 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
- CotopaxiAllpa Getaway Duffel Bag - 55 LTop Rated$175.00(14)14 reviews with an average rating of 4.7 out of 5 stars
- NathanRace Day Cups - Package of 2Top Rated$13.00(17)17 reviews with an average rating of 4.7 out of 5 stars
- BrooksLuxe T-Shirt - Women'sTop Rated$50.00(32)32 reviews with an average rating of 4.6 out of 5 stars
- GarminMARQ Gen 2 Adventurer$2,100.00(7)7 reviews with an average rating of 4.1 out of 5 stars
- Pro-Tec AthleticsPremium Knee Support$47.95(3)3 reviews with an average rating of 5.0 out of 5 stars
- Black DiamondDistance 1500 HeadlampTop Rated$219.95(54)54 reviews with an average rating of 4.7 out of 5 stars
- TYRVesi Tie-Dye Swim Goggles - Kids'$22.50(0)0 reviews
- VuoriSunday Element Vest - Men's$94.00(2)2 reviews with an average rating of 5.0 out of 5 stars
- PatagoniaAirshed Pro Pullover - Women's$139.00(0)0 reviews
- SmartwoolIntraknit Strappy Bra$75.00(1)1 reviews with an average rating of 3.0 out of 5 stars
- Lenny & Larry'sComplete Crunchy Cookie PouchTop Rated$4.50(162)162 reviews with an average rating of 4.7 out of 5 stars
- TimexIronman 30-Lap Mid-Size Watch$63.00(2)2 reviews with an average rating of 3.5 out of 5 stars
- OiselleFlyout Bra$68.00 - $78.00(3)3 reviews with an average rating of 4.7 out of 5 stars
- Janji7/8 Trail Tights - Women's$98.00 - $108.00(9)9 reviews with an average rating of 4.4 out of 5 stars
- PatagoniaEndless Run 6" Shorts - Men's$89.00(5)5 reviews with an average rating of 4.2 out of 5 stars
- Oya Femtech ApparelCooling Long-Sleeve Top - Women's$38.93Save 30%compared to $56.00(1)1 reviews with an average rating of 5.0 out of 5 stars
1,801–1,830 of 3,222 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.