Ch*lk U is a climbing apparel brand built around the connection, humor, and comfort of the climbing community. Its super-soft clothing is designed for gym sessions, outdoor climbing, warmups, rest days, and the time spent with friends after a climb. The brand’s designs draw on climbing culture, using chalk-inspired artwork and insider humor intended for people who understand the sport and its shared rituals.

Chlk U’s range includes T-shirts, hoodies, jackets, and accessories such as bags, hats, beanies, and caps. Its T-shirts are made from a lightweight tri-blend of standard or recycled polyester, combed ring-spun cotton, and rayon, with OEKO-TEX-certified inks. The brand highlights their breathable feel, unisex classic fit, stretchy construction, and freedom of movement. Shirts are pre-shrunk, and the company reports that its prints held up through more than 100 washes in internal testing. Customers can shop designs including Chalk Goblin, Send It, On Belay, and a collaboration with climber Iris Heikkinen. Chlk U also offers a T-shirt selection wizard and 14-day, no-questions-asked returns.