Made from an advanced thermal technology that is both breathable and compression resistant. Best-in-class insulation designed for repeated compression and durability. Bares warmest Polar Undergarment incorporating PrimaloftA(R) Gold Insulation with Cross Core Technology. Ultra-fine fibers are designed to trap warmth. Allow comfort and thermal regulation. Includes moisture management technology that acts as a second stage in moisture movement away from the skin. Incorporates quick drying characteristics for rapid evaporation keeping you dry and comfortable High warmth-to-weight ratio delivers the exact warmth and breathability required for dive applications Zippered chest pocket designed to store keys or cards Thumb loops to keep sleeve in place while donning drysuit Extra-long front zipper (2-way convenience access) Hand warmer pockets Elastic waist cinch Stitched Buttonholes for P-valve installation Lycra stirrups keep pants in place when donning drysuit Packaged in BARE branded stuff sack bag