This bottle design is right on target. Sip your drink all day long! These insulated bottles keep your drinks cold for up to 24 hours and hot for up to 12 hours. Toss your bottle in your bag without worrying about spills or drips. The bottles feature a leak-free top for added spill protection. Bottles are composed of double-walled, insulated 18/8 stainless steel. Dont forget, your Sip by Swell is not dishwasher safe hand wash only! 15oz. = approx. 2.87\' D x 2.87\' W x 10.94\' H, 0.71lbs