Madewell Sidewalk Slip-On Sneakers in Spatter-Painted Calf Hair in excellent used condition. Ditch the laces with our slip-ons, designed to be comfortable from the get-go. Made of textural calf hair in a spatter-paint print with a recycled cotton lining, these sneakers have MWL Cloudlift insoles for a supercushy, ultra-supportive fit that feels like walking on a...well, you know. When you select your size, "H" equals a half size. Do Well: Uses recycled pre-consumer cotton that could otherwise go to landfills. Calf hair upper. Man-made sole. Import.