KEEP YOUR COOL: This insulated bottle keeps drinks cool for up to 24 hours, hot for up to 6 hours, and drinkably warm for up to 12. LEAKPROOF DESIGN: Perfect Seal technology makes for a leakproof insulated water bottle - ideal for hectic commutes, demanding gym sessions, and hiking. SAFE AND SWEAT FREE: Each thermal flask is made from rust-resistant, food safe materials that wont taint drinks or produce condensation. CHOOSE FROM A RAINBOW OF COLOURS: This silver water bottle is one in a selection of beautiful colours. It couldnt be easier to look good while maintaining a healthy lifestyle!.