Double Wall Tumbler with Silicone Membrane Seal

Does your current tumbler not keep your drinks cold or hot for long periods of time?Get this Double Wall Tumbler with Silicone Membrane Seal and keep your drinks at the perfect temperature for hours! This tumbler is made from stainless steel and features double-walled vacuum insulation to keep your drinks cold or hot and a silicone membrane seal to lock in the temperature. It also wraps around the straw for a snug fit, making this ideal for kids too. Get this Double Wall Tumbler with Silicone Membrane Seal today and keep your drinks at the perfect temperature for hours! Brand: Not specified. Features: Double-walled vacuum insulation for thermal insulation, silicone membrane seal to lock in the temperature, unique anti-twist and leak-proof design, coverless seal design with a rotating silicone film, comfortable grip with an ergonomic bottle design, freezer safe, simple to use with a twist top membrane, keeps drinks hot for 2 hours and cold for up to 6 hours, can be heated in the mi