Medium(10-12) is for 58-86 pounds with 23-26 inch waist
Large(14-16) is for 86-114 pounds with 26-28 inch waist
Made with super soft premium cotton, brand name classics is our most comfortable brief. Classics also feature a premium waistband for plush, all-day comfort. Comfort soft boxer briefs mean the waistband is covered in soft cotton, so it won't pinch or bind.