The XCEL VENTX rash shorts are high-end undershorts for optimum performance and comfort. All VENTX products block over 95% of harmful UVA and UVB rays (UPF 30) to keep you safer in the sun. Unlike traditional rashguards, these shorts feature a moisture wicking, quick drying fabric that keeps you comfy all day long. The VENTX material is soft, stretchy, lightweight, breathable, and odor resistant. *Please note that rash guards do not keep you warm. They are worn alone -or- under a wetsuit to prevent chafing, rash, abrasion, and sunburn. XCEL rashguards come with a 90 day warranty on materials and craftsmanship. You can help keep your lycra in great shape for years to come by always rinsing in fresh water and hanging to dry. A number of wetsuit care products can be found on our Wetsuit Accessories page.