ETX Boys Cotton Underwear Boxers Briefs,Set of 5 95% cotton Materials : 95% Cotton , 5% Spandex Comfortable and soft Each package has 5 underwears, color as shown in the picture Free return in 3 months, please email us before you request a return. Size guide: 1-2 Years,Weight:22lb-28.6lb; 2-3 Years, Weight:29.7lb-35lb; 3-4 Years, Weight:36lb-41lb; 5-6 Years, Weight:42lb-50lb; 7-8 Years, Weight:51lb-59lb; 9-10 Years, Weight:60lb-77lb; 11-14 Years,Weight:78lb-99lb.