Build Your Own Organic Cotton Workout Set: Three Ready-to-Shop Formulas

The short answer: the easiest way to build an organic cotton workout set is to pick one of three proven formulas, each built from our best-selling pieces: a yoga set around our number-one seller, the High Waist Leggings, with the Racerback Sports Bra; an everyday set around the High Waist Pocket Leggings with a matching fitted top; or a gym set around our best-selling High Waist Shorts and the same top-selling bra. Every fitted piece uses the same PureFlex fabric, 92% GOTS-certified organic cotton with 8% spandex, so any top matches any bottom and the colors are dyed in the same Los Angeles dye house.

Why Build a Set Instead of Buying One Boxed

Matching sets sold as a single unit lock you into one size for top and bottom. Most people aren't one size. Building your own set from coordinated pieces gets the match without the compromise: same fabric, same dye process, your size in each piece. The formulas below aren't guesses; they pair the pieces our customers actually buy the most, hundreds of orders a month, in combinations that wear together.

Formula 1: The Yoga and Pilates Set

PureFlex High Waist Leggings, $75 + PureFlex Racerback Sports Bra, $62. Set total: $137.

Our single best-selling piece paired with our best-selling bra. The high waist stays put through inversions and forward folds without rolling, and the racerback keeps straps clear of the shoulder blades. The cotton-dominant knit breathes through long holds, which is where synthetics turn clammy. In a warm studio, swap in the Capri Leggings, $69, for more airflow at the calf.

Formula 2: The Everyday Set

PureFlex High Waist Pocket Leggings, $82 + PureFlex Reversible Pivot Top, $55. Set total: $137.

The deep side pockets hold a phone securely, which matters more on a walk or an errand run than anywhere else. The Reversible Pivot Top is the fitted match: same PureFlex fabric, two looks in one because it reverses, and it lets the leggings be seen instead of covering them. Prefer a different silhouette on the bottom? The Mid-Rise Leggings, $72, or Bootcut Leggings, $78, pair with the same top.

Formula 3: The Gym Set

PureFlex High Waist Shorts, $55 + PureFlex Racerback Sports Bra, $62. Set total: $117.

The shorts are one of our three best-selling products, and the bra is the one our customers choose most. Need a phone pocket between sets? The Pocket Shorts, $62, add one for $7 more. Want more coverage during rows, presses, and floor work? Swap in the High Neck Racerback Bra, $64; we describe it as low to medium impact, which suits lifting better than repeated jumping. For cooler gyms, run either bra under the High Waist Leggings instead of shorts.

The Rest-Day Set: Pure 100% Organic Cotton

Recovery days get their own formula. The Pure 100% Organic Cotton Classic Fit Tee, $44, with the Pure 100% Organic Cotton Lightweight Joggers, $79, is an all-cotton set with zero synthetic fiber, relaxed by design. PureFlex (92% organic cotton, 8% spandex) is the fitted training fabric; the Pure line is the relaxed one. The percentages differ because the jobs differ; a fitted legging needs stretch recovery, and a relaxed tee and jogger don't. Our guide to whether leggings can be 100% cotton explains that trade-off.

Why These Sets Are Different

Every piece above is made with GOTS-certified organic cotton, designed, cut, sewn, and finished in our own Los Angeles facility, with knitting and garment dyeing done by Los Angeles partners. The fabric is independently lab-tested PFAS-free, and we publish the lab report. No polyester shell, no chemical performance coatings, and no imported mystery set from a factory nobody has visited. PuraKai is a father-and-daughter founded business, independent since 2012. Browse the full women's organic cotton activewear collection to build your own combination.

Caring for a Matching Set

Wash the set together: cold water, inside out, like colors, no fabric softener. Air dry both pieces. Washing top and bottom together keeps the color aging in step, so the set still matches a year in.

Frequently Asked Questions

What is the best organic cotton workout set for yoga?

The High Waist Leggings, $75, with the Racerback Sports Bra, $62. They are our best-selling bottom and best-selling bra, and the pairing works: the high waist stays put in inversions and the racerback keeps your shoulders free. Swap to capris for hot studios.

Do the tops and bottoms match in color?

PureFlex pieces are garment-dyed by the same Los Angeles dye house, so shared colorways are dyed to match. Check the color options on each product page and wash the set together to keep the match as the pieces age.

Can I mix a 100% cotton piece with 92/8 pieces?

Yes. The Pure 100% organic cotton tee and joggers make the rest-day set, and the PureFlex pieces make the training sets. Same organic cotton, different jobs: fitted pieces need spandex for stretch recovery, relaxed pieces don't.