3 LAYER CONSTUCTION - Including an outer soft covering that is soothing to injured tissue, an absorbent middle layer to wick away moisture and a leak-resistant inner layer to help ensure the traumatized area stays dry. EASY FILL – Wide neck opening allows ice bags to be easily filled and less of a mess with ice cubes or crushed ice from your own freezer. CLAP CLOSURE - A hook and pin hinge design snaps securely shut to prevent leakage and spills. PAIN RELIEF - place on an area after an injury to reduce swelling ideal for First Aid, Acute, Chronic Pain, Arthritis and more. 4 TIE STRAPS - Four convenient straps to ties around arms, legs, elbows and knees to help keep the Ice Pack in place.