S/M is 3 1/8"L x 1 5/8"W at widest point; L/XL is 3 5/8"L x 2"W at widest point.
U.S. Return Policy and Exchange PolicyJ.Crew gladly accepts returns of unworn, unwashed, undamaged or defective merchandise purchased online, by phone or in stores for delivery that shipped to a U.S. address for a full refund or exchange within 30 days of original purchase.