Stay hydrated in style with the Rhino Mug, built to withstand your toughest adventures. Crafted from durable 18/8 stainless steel with a soft, matte finish, this 50 oz. mug is designed to last. Its double-wall vacuum insulation keeps your drinks cold for up to 11 hours and hot for up to 7 hours, so you can enjoy your favorite beverages at the perfect temperature. The screw-on clear straw lid with a locking flip closure offers versatile drinking options, whether you prefer sipping, drinking, or gulping. The reusable straw is easy to clean and dishwasher safe for added convenience. Whether you're exploring the great outdoors or simply commuting to work, this mug is the perfect way to stay hydrated.