The 2XU Comp Tri Singlet is designed to take you from the water to the bike to the run without slowing you down between disciplines. Built from 2XU's SBR SKIN X fabric — a nylon and LYCRA® fibre blend — the singlet dries quickly after the swim leg and stays breathable through the bike and run. The form-fitting, compression-style silhouette minimizes drag and fabric movement, and the built-in shelf bra provides support without requiring a separate layer underneath. Where a tri singlet earns its value is in the details that prevent discomfort over the course of a race. The 2XU Comp uses flatlock seam construction throughout — stitching that lies flat against the skin rather than raising a ridge that can cause chafing at mile two of a run. SENSOR MESH X ventilation panels are placed at high-exertion zones to move air through the garment during the bike and run, managing heat without compromising the singlet's aerodynamic profile. The result is a garment that stays comfortable across all three disciplines without any of the bulk of a two-piece race kit. Specs at a Glance Fabric: SBR SKIN X — nylon and LYCRA® fibre blend Ventilation: SENSOR MESH X panels at high-exertion zones Seam Construction: Flatlock throughout Bra: Built-in shelf bra Fit: Form-fitting, compression-style Discipline: Swim-bike-run triathlon Design Benefits Quick-drying fabric built for transitions. SBR SKIN X is engineered for the swim-to-bike transition specifically — the nylon and LYCRA® blend sheds water faster than standard performance fabrics, so you're not carrying excess weight or discomfort into the bike leg. By the time you're into the first few kilometers on the bike, the singlet has largely dried. Flatlock seams mean no chafe. Flatlock construction is the standard for serious tri apparel for a reason — conventional raised seams become a problem on run legs, particularly in longer events. The 2XU Comp uses flatlock throughout, which is the right call for any triathlon singlet being worn for extended periods across multiple disciplines. Ventilation where it matters. The SENSOR MESH X panels target airflow at the zones that generate the most heat during effort — keeping core temperature manageable on the bike and run without opening up the garment to excessive drag.
