12 HOURS HOT / 24 HOURS COLD. Peak insulating performance thanks to innovative triple walled design 20% LIGHTER than competitors! Bottle weighs just 9.6 oz (272 g) so it’ll never slow you down NO SWEAT, NO LEAKS - Leak-proof lid and vacuum insulation technology means all liquid stays inside your ultralight bottle. SCRATCH-RESISTANT FOOD GRADE STEEL. Bottle never retains odor or flavor and extra-durable powder coated finish stands up to drops, scratches and impacts. 100% SATISFACTION GUARANTEED - Bear Grylls Gear is backed by a limited lifetime warranty.