No. 21 Knotted metallic leather sneakers, N°21's sneakers are twisted and folded at the front to create a cool origami-style knot - a label signature. Set on a chunky white heel, this pair is made from metallic leather in a striking palette of silver and gold. We'll be wearing ours with everything from cropped jeans to mini skirts Size: 35. Gender: Female. Age Group: Adult.