Underwire Fitness

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.

Our guide to gear and clothing will get you up and running (and swimming and biking) for your next triathlon.

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.

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.

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.