Calvin Klein Boy`s Logo Briefs 3 Pack 95% Cotton/5% Spandex Imported Machine Wash 3-pack logo briefs. Cotton stretch. Elasticated logo band. Functional fly. Seaming details. 95% cotton 5% spandex Size Conversion: XS=4/5 (33-42 lb, waist 20-21 in), S=6/7 (43-58 lb, waist 22-23 in), M=8/10 (59-73 lb, waist 24-25 in), L=12/14 (74-100 lb, waist 26-27 in), XL=16/18 (101-126 lb, waist 28-30 in).