LITTLETON, Colorado – Why chose a drysuit over a wetsuit in cold water paddling? The human body gives off heat and the heat that the body gives off warms the space surrounding the body, this is known as convection. Wetsuits and drysuits are designed to use convection to keep the body warmer in cold conditions and according to experts, the human body loses heat 25-times faster in cold water. (You can learn more about the mechanisms of heat loss here.) So, why choose a drysuit? To put it simply, a drysuit is designed for longer periods of exposure in cold conditions. The layering beneath the drysuit is key though, so here are some suggestions on how to layer up before you paddle out in the cold water.