Aqua Lung 3mm Heat GlovesInnovative Titanium Slick Skin (TSS) highlights what makes our 3mm Heat Gloves a better option for warm hands. TSS is unlike other material as its properties include faster drying times, added heat, and the lack of stink typically found in lesser gloves. Features: Sealed seams provide longevity and superior water tightness Lined with Glideskin for ultimate comfort, wet or dry Choice of 5mm or 3mm neoprene in 5 finger design for desired cold water