The Touchdog Tough-Stitched Durable Embroidered Harness and Leash Combination features Dual-reinforced stitching for durability and a designer printed pattern with an accented Stainless Steel leash connector located on the Harness. Sizing Specifications - (In Inches). Leash is 48" SM - Chest Circumference - 9.84 - 13.77" Weight - Up to 7.7 Lbs MD - Chest Circumference - 13.77 - 21.65" Weight - Up to 17.68 Lbs LG - Chest Circumference - 21.65 - 44.8" Weight - Up to 32 Lbs