The-main-purpose-of-the-Radiant-is-to-insulate-&-retain-body-heat-The-Wind Barrier-reg-makes-sure-no-wind-will-enter-&-allows-the-continuation-transportation-of-moisture-to-the-outermost-layer-of-the-garment-The-Radiant-is-very-lightweight-&-comfortable-thanks-to-the-fleece-inner-liner-4-way-stretch-shell-&-anatomical-fit-The-Radiant-can-be-worn-on-the-bike-as-an-insulating-layer-or-off-the-bike-as-a-jacket-Features-water-repellent-windproof-highly-breathable-laminated-reflection-laminated-reflective-logo-Fit-tight