Kalas is a cycling apparel brand whose jersey-making roots in Tábor date back to 1991. The company offers clothing for men, women and children, with products designed for cycling and triathlon, as well as casual wear. Its range includes short- and long-sleeve jerseys, jackets, vests, bib shorts, tights, base layers, arm warmers, gloves, socks, caps and one-piece suits. Seasonal options and different fits are available, including aero and regular styles.

Kalas collections include PASSION, focused on carefully selected fabrics, precise construction, comfort and performance, and MOTION, which pairs everyday comfort with distinctive splash-inspired design. The brand also sells official team apparel, including clothing for Alpecin-Premier Tech, and a collection associated with the Dutch Cycling Federation (KNWU). For clubs seeking a coordinated kit, Kalas provides custom sublimated cycling apparel, with a stated minimum order of five main garments. The website also features special editions, team replicas, sale items and gift vouchers. Kalas promotes free shipping on orders over €130, free returns within 30 days and eco-friendly packaging.