Keep your warm drinks steaming hot for hours with the Sea to Summit Delta Insulmug! This insulated travel mug has a 473ml capacity and comes with a snug fitting and self-draining lid to help avoid spillages and allow you to enjoy drip free sipping. The Delta Insulmug is constructed from BPA Free Nylon 66 material, which has an exceptional strength to weight ratio, and won't crack in extreme cold. The mug also benefits from Sea to Summit's patented protex hex pattern base, which reduces the weight of the mug and evenly disperses surface temperature. To ensure your drink stays hot and your hands remain cool, the Insulmug comes with a moulded insulation skin. Great for camping, travelling and expeditions, this insulated travel mug is capable of withstanding even the coldest of temperatures.