Woolrich Whitecap Women's Slippers. The Women's Woolrich Whitecap Slipper is a comfortable, functional slipper inspired by the great outdoors. The quality ensures they will look great, feel terrific and last season after season. The Women's Woolrich Whitecap Slipper features chunky fleece upper and soft fleece lining. 10mm luxurious midsole cushion. Indoor/outdoor outsole.