The new stylish RD Sports Bottle (500ml) in double-walled stainless steel keeps hot liquids for up to 12 hours and cold liquids up to 24 hours. Functional base in natural rubber ensuring stability on all kinds of surfaces. 100% airtight and watertight. The RON DORFF motto "DISCIPLINE IS NOT A DIRTY WORD" laser engraved on the side. The mandatory accessory for a session at the gym.