This Drysuit Base Layer with Advanced stretch-breathable fabric draws moisture away from the body to create a dry zone, while moisture is dispersed over a larger surface for quick evaporation. Ultrawarmth Base Layers are essential to a diver?s drysuit system, and can include a mid-layer for additional warmth, keeping dry suit divers warmer and more comfortable for longer. Also great for camping, or wearing after the dive to retain heat.