K2 Medium Top Long Sleeve Thermal Undersuit - Men\'s The undergarments of choice for drysuit diving, the new K2 line keeps you warm while diving dry. Sporting a modern eye-catching design, these undergarments are available in two levels of thickness to suit a variety of thermal warmth requirements. They are compatible with drysuits. Features: Breathable, warm and stretchy HD Plush material 629g/m2 (+/-5%) Compatible with drysuits Pants and long sleeve tops with side and chest pockets Includes elastic wrist loops on tops and heel straps on pants