Our online sales DTC are split approximately 13% XS, 29% S, 33% M, and 25% L. DETAILS -Soft natural fabric on the outside and inside - perfect for sensitive pups with nylon allergies or chafing -Nylon webbing core can withstand over one thousand pounds of pull -Reinforced box stitches at all stress points -Luxe metal hardware MATERIALS AND CARE -100% cotton fabric exterior, nylon webbing interior -Hardware: gold zinc alloy with a solid brass D-ring -Hand wash or machine wash cold on delicate cycle inside a bag or pillowcase to protect the hardware. Air dry flat.