Our Thermastat Gloves are made with FDA accepted materials and can be used in food processing applications. Thermastat is a DuPont hollow-core hydrophobic polyester fiber that is an excellent insulator. Not only does this fabric hold in warmer air, but also helps wick away perspiration. Can be worn as a liner underneath other types of gloves to provide insulation or worn alone to provide protection. Great for use refrigerated environments. One size fits all. The 9622 is a blue 10 gauge Thermastat / Lycra fabric glove. Looking for the best insulated gloves? Look no further than MCR Safety!