Aero Sun Sleeves Go faster, stay cooler, and stay protected with the WYN republic Aero Sun Sleeves. Designed to pair seamlessly with our Hi Velocity Tri Suit range, these lightweight sleeves offer aerodynamic performance and sun protection in one sleek, second-skin layer. Constructed from flexible, high-performance Hi Speed fabric, the Aero Sun Sleeves feature laser-cut cuffs with custom silicone grippers for a stay-put fit and zero drag. Ideal for racing in hot conditions where sun coverage and speed both matter.