The Adidas Boys Essential Boxers feature flatlock seams for added level of comfort and a extra life Lycra fabric. The internal drawcord allows for adjustable levels of security helping to secure the boxer to your waist.Infinitex provides optimal comfortPerfect fit and superior anti-chlorine propertiesExtra Life Lycra fabricFlatlock seams for added comfortInternal drawcord Black colour, 80% Polyamide, 20% Elastane Tricot Knit