This double-wall insulated flask will keep hot items warm for hours. Preheat, and your hot beverage will stay that way all day. Includes a tight-fitting, wide-mouth lid, interchangeable with all TruFlask brand lids, with a strap for carabiner-attaching to your pack. The Rockoon logo is etched into the 18/8 stainless steel, so it will never peel off. The green color is a subtle, dark forest tone.