Mens Lightspeed React TriSuit

Built alongside the world's best long-course triathletes and tested in wind tunnels in Australia and the UK, the Light Speed React is 2XU's most aerodynamically refined trisuit to date. A 7-watt saving over the previous model. PWX medical-grade compression to fight fatigue on the run. HeiQ Smart Temp cooling technology to protect your pace in the heat.

1. Sleeveless trisuit
2. Ergonomically engineered panelling with smooth, flat overlock seam finishes reduce loose or wrinkled fabrics
3. Lightweight, flexible PWX provides powerful lower body muscle support
4. HeiQ Smart Temp technology keeps you cool
5. 225gsm SBR CHANNEL spliced through sides and nutrition pocket assist with breathability and help 'roughen' up air flow to reduce drag
6. 160gsm SBR SKIN LITE stretch interlock wicks sweat away from upper body so you stay dry and cool
7. Large centre back aero pocket with dual side access as well as additional internal nutrition pockets
8. Easy access ice pocket on back neck for improve endurance performance in heat
9. Full length semi-auto lock zip for easy mid-race pit stops
10. TMF® Light Speed Tri Chamois dual layer 90 density high impact / 140 density superlight foam
11. 10"" short with integrated silicone grippers and clean-cut streamlined fit
12. This garment contains recycled yarns

EXCEPTIONAL AERODYNAMICS
Wind tunnel tested across 5 prototype iterations at Silverstone (UK) and the Australian Centre for Sports Aerodynamics (SASI), the Light Speed React delivers a measured drag of 327.7 watts at 50km/h - a 7-watt saving over the our 2024 model, translating to a potential 3.5 to 5 minutes over 180km. 225gsm SBR CHANNEL fabric spliced through the sides and centre back pocket disrupts airflow to reduce drag, while flat overlock seam construction and ergonomically engineered panelling eliminate any loose or wrinkled fabric that creates resistance.

ULTIMATE COOLING
HeiQ Smart Temp technology senses any rise in body temperature, increasing evaporation of perspiration through the fabric to deliver up to 2.5°C cooler fabric surface temperature. 160gsm SBR SKIN LITE stretch interlock wicks sweat away from the upper body to keep you dry, while the easy-access ice pocket on the back neck gives you an additional active cooling option.

POWERFUL & LIGHTWEIGHT COMPRESSION
The 10-inch compression short is constructed from 2XU's pioneering PWX fabric, delivering more than twice the compression power of standard sportswear fabrics, at a fraction of the weight. Built on 2XU's medical-grade compression heritage, PWX reduces muscle oscillation and prevents fatigue across both the bike and the run. Integrated silicone leg grippers ensure a clean, streamlined fit that stays in place from start to finish.

TMF® LIGHT SPEED TRI CHAMOIS
Designed for Ironman distance, the dual-layer pad combines a breathable 90-density 6mm foam with a superlight 140-density 3mm foam. Skyve technology - foam shaved and shaped for anatomical precision - and Free-Edge construction, where the entire external edge is foam-free for totally flat stitching, deliver optimal support and comfort across all three disciplines.

ESSENTIAL STORAGE
Large centre back aero pocket with dual side access, plus internal nutrition pockets, provide secure storage for race-day essentials. Pocket placement was refined through wind tunnel testing to ensure storage doesn't compromise aerodynamic flow across the back.

FABRIC COMPOSITION:
Upper Main Body: 87% POLYESTER / 13%  ELASTANE
Sides and Aero Pocket: 80% POLYESTER / 20%  ELASTANE (225GSM SBR CHANNEL)
Upper Body Panels: 160GSM SBR SKIN LITE STRETCH INTERLOCK
Mesh: 87% POLYESTER / 13%  ELASTANE
Lower Body: 65% RECYCLED NYLON / 35% LYCRA (PWX)