trisuit

A trisuit is a one-piece garment designed specifically for triathlon competition, worn across swimming, cycling, and running. It is intended to streamline the athlete’s changing needs, reduce drag, and shorten transition times by eliminating the need for multiple garments between disciplines.

Design and features commonly found in trisuits include a close-fitting silhouette, shorter or longer leg lengths, and sleeves that may be sleeveless, short-sleeved, or long-sleeved. Most trisuits use flatlock seams to minimize chafing and feature fabrics that are quick-drying, lightweight, and moderately compressive. Many designs incorporate a front or rear zipper for ventilation and ease of donning, and some include a thin chamois or pad optimized for cycling; padless variants are also common for lighter running comfort.

Materials and construction are typically based on synthetic blends such as nylon or polyester with spandex or Lycra, chosen for stretch, durability, and moisture management. Fabrics often offer some degree of chlorine resistance for pool use and UV protection for outdoor events. Trisuits may also include mesh panels for ventilation or back pockets for nutrition and small essentials, though pockets are used variably across models.

Fit, care, and selection considerations include ensuring a snug, aero fit without restricting movement, trying different leg lengths and sleeve options for climate, and checking for comfort around seams and closures. Care involves rinsing after use, washing in cold water, avoiding fabric softeners, and air-drying away from direct heat to preserve fabric performance.