Made of 100% nylon material. Glove liners are thin enough, 0.015 gauge, to be worn under gloves to reduce perspiration build-up over extended wear. Liners are breatheable, whisking persperation away when worn under any liquid proof glove. A smooth fit will not compromise tactile sensitivity making these gloves ideal for use where acute touch sensitivity is required. Gloves are ambidextrous and one size fits all. 12/pack