This is the DUI Womens Duotherm Jumpsuit 300 Undergarment for Scuba Diving Features: One-piece design avoids any possible gap between upper and lower garments Recommended for 45-65AdegF. Great choice for colder waters! Heavy Stretch Fleece (560 gm/m2) with pill-resistant, watershed outer jersey Torso zipper Hand warmer pockets Stand-up collar for extra warmth Thumb loops reduce unwanted sleeve movement during donning The DuoTherm Jumpsuit 300 is an excellent option for cold-water diving. Our DuoTherm(TM) Pro DiveWear is constructed with all-way stretch fleece and accent stitching. Delivers warmth, comfort and great styling. Versatile for layering and other outdoor activities.