You're not a rhinoceros, which means your fragile human skin needs a protective layer to keep it from looking like you bathe in acid after hours in paddle gear. Immersion Research offers the tight-fitting Thick Skins Short-Sleeve Rashguard for men like you looking for both cold-weather warmth and soft, next-to-skin comfort. Moisture-wicking, double-sided fleece draws water vapor away from your body for rapid evaporation, ensuring water is where it's supposed to beoutside of your gear. Thanks to a high collar and a UPF 40 rating (which blocks up to 97% of UV rays) you won't look like the crazy dudes stalking the group from the banks of the river you're paddling.