This product uses technology originally developed for NASA astronauts . The, lightweight gloves actually store heat in their microcapsule-insulated lining and release it back to you when you need it most. With a soft Italian-finished nappa leather exterior and a Thinsulate palm, our heat-storing gloves detect the temperature of your skin to ensure that no matter the weather, your hands won’t be too cold or too warm. Although they provide a snug fit at first, the leather will gently conform to the shape of your hands with wear. If in-between sizes, order the next size up. Imported.Women’s. With palm vent and bound hem. Specify Black or Brown. Sizes S (6 1/2), M (7), or L (8 1/2).