Orca Men’s Apparel Size Chart The 226 Tri Tank has a race-bred heritage thanks to its endurance performance track record around the world. The top has been re-engineered with Orca’s new Vapour-Cool fabric, which uses nano crystals embedded in the fiber to naturally conduct heat away from the body, keeping you cool. Used across the entire front and lower back of the Tri Tank the cross-section yarn construction enhances moisture wicking and dries quickly. This highly breathable fabric also contains silver ions that are antibacterial and deodorizing, and anti-allergy, making it ideal for longer distance racing and use in hot conditions. Orca’s Tri-Enduro mesh fabric is on the back of the tank for breathability and wicking. The UPF50+ protection offered by all fabrics used in this tank makes it ideal for race days when you’re out in the elements for long periods of time. New to the tank is a distinctive 226 sublimated print detail on the side panels. The top also has a lower cut at the back for increased coverage when cycling and running. Features: – Revolutionary new Tri-Enduro mesh used on the back of the 226 Tri Tank wicks moisture away fast. – Vapour Cool uses nano-crystal technology to keep the body cool and promote fast wicking on the front and lower back panels. – StretchSkn four way stretch fabric featured in the 226 range is strategically placed where aerodynamics are most important. This multi faceted woven fabric also provides compression benefits allowing muscle support and slower rate of fatigue. – Two large rear pockets across the lower back give you plenty of room to store the nutrition you need within easy reach in a place that won’t bounce around.