IPF Approved Superior Quality Heavyweight Fabric — Materials play an important role when choosing a powerlifting singlet. Oni Powerlifting Singlets are made from high quality heavyweight fabric that are not prone to tearing yet allow easy maneuvering. Solid Full Body Construction — Oni singlets are constructed as one solid unit. Thick but comfy for durability and supreme compression for your whole body. Optical Illusion design — side lines from the hips to the thighs are visually designed to give a special effect that hinders the referee from noticing your hip popping during bench press. Elastic Leg Bands — Tight but comfortable elastic bands around each thigh providing secure fit. Sizing under 60kg: XS60kg-70kg: S70kg-80kg: M80kg-90kg: L90kg-115kg: XL115kg-125kg: XXL125kg over: XXXL Material 80% Polyester 20% Spandex (Nylon) How to wash Machine wash cold gentle. Wash separately. Do not tumble dry, bleach, iron, or dry clean.