What Our Gearhead(R) Experts Are Saying:"I wore the Concept Radiator Jersey on a long August ride and the Polartec Delta panels across the front genuinely kept me cooler than I expected given the conditions. The fit is dialed for an aggressive position and the rear pockets held everything I needed without sagging once."August sun, no shade, and 40 miles still to go. That's exactly where the Velocio Concept Radiator Jersey earns its name. When every other layer becomes a liability in the heat, this jersey is actively working to keep you cooler than bare skin, pulling moisture away from your body and using evaporative cooling to take the edge off the kind of temperatures that make most riders turn around early. Velocio built the Concept Radiator around Polartec Delta fabric positioned across the front and shoulders, where heat management matters most on the bike. The UPF 30+ back panel shields you from the sun during long hours in the saddle, and the aerodynamic construction keeps the jersey tucked and race-ready no matter how hard you push the pace. Reinforced rear pockets handle a full kit load without drooping, so your gels, phone, and layers stay put from the first pedal stroke to the last.