New without Box Retails for $448 on website now Reformation's 'Rosa' knee boots could have easily been plucked from the '90s. Set on slender 75mm block heels, they're made from spongy neoprene and have a snug, sock-like fit. Wear yours with mini or midi dresses. The details Block heel, square toe, high heel. Pull on. This is a stretch neoprene fabric made from recycled nylon fiber. Spot clean.