The undergarment of choice for cold water thermal insulation, the K2 Medium Undersuit will keep you toasty warm while you’re diving dry. Sporting a modern eye-catching design, the K2 Medium comes in long sleeve tops and pants that you can wear separately when conditions permit, or together for a total thermal insulating system. Both pants and long-sleeve tops are made with a breathable HD plush material that’s warm and very stretchy. Elastic wrist loops on the tops and heel straps on the pants enhance fit and prevent ride-up when donning a drysuit.