Designed to be worn under a wetsuit or on their own in warmer waters, the Thermocline shorts help to increase thermal protection to the body core . Can also be worn with the short sleeved top to make a lightweight shortie wetsuit. The shorts are a smart alternative to board/swim shorts as the close fitting material won't ride up under a wetsuit. Worn under board shorts, the Thermocline shorts can provide that extra thermal protection allowing you to extend your season in the water with the freedom and comfort of shorts before moving to a full neoprene wetsuits. A high back means it won't ride down when paddling or swimming.