What Our Gearhead(R) Experts Are Saying:"I took the Infinity Windstopper Hoodie on a mixed alpine route in the Tetons and was seriously impressed. The WINDSTOPPER(R) fabric blocked sharp ridge winds without overheating, and the down stayed lofted even after being stuffed in and out of a pack all day. This jacket just does work."When temps drop and the exposure ramps up, we zip into the Infinity Windstopper Hoodie for complete alpine protection. Designed by Rab with technical climbs in mind, this jacket pairs windproof, weather-resistant WINDSTOPPER(R) fabric with lofty 800-fill-power down for a powerful balance of warmth and protection. Whether we're front-pointing up ice or hunkered down at a belay station, the Infinity locks in heat where we need it most. Carefully considered construction adds to its mountain utility. A helmet-compatible down-filled hood with a stiffened brim shields us from spindrift and windchill, and the articulated sleeves and glove-friendly cuffs support full mobility without gaps. Minimal seams reduce exposure, while the insulated front zip baffle prevents cold spots. From vertical objectives to exposed ridgelines, this layer is built to perform in the harshest alpine conditions.