comfortable, warm eric jackson signature gloves . the oyuki e-jack gloves come with warm primaloft® insulation and a gore-tex® membrane on the inside, while offering a soft, high-quality goatskin on the outside.the suede patch on the thumb is soft enough to wipe your goggles, and the ykk® side zip makes it even more comfortable to put on.the combination of these materials and features makes the e-jack gtx gloves your companion for every day and every condition of the season.