The Delta Insulated Mug is a lightweight, thermally-efficient camping or daily commuting mug that uses a Protex hex pattern base for heat dispersion and weight reduction. The non-absorbing ThermoSkin insulating sleeve offers heat retention and the snug-fitting self-draining lid allows drip-free sipping. Features:- a Ergonomic cool-grip rim eliminates the need for a hard-to-pack handle a Protex hex pattern base disperses heat a Odor and stain resistant a Measurement increments on the inside a BPA-free and dishwasher safe a ThermoSkin insulation sleeve for a comfortable grip a Sipping lid with secure seal and hang loop