From the concrete jungle to the trailhead, the rugged stainless steel and bamboo Trail Tumbler keeps nature in your hands and your drinks the perfect temperature. Sustainable bamboo wood and strong 8/10 stainless steel construction Double walled and vacuum insulated to keep your beverage of choice the perfect temperature At home no matter whether on the trail, in the office or on the beach Hassle-free top lets you easily fill and clean Slip and slide-resistant pad on the bottom keeps the Trail Tumbler from tumbling Vent hole on the top reveals itself when spout is open for smooth drinking The no-spill, deeply recessed, silicon sealed top keeps the drink in the cup and not on your shirt Save money with no more disposable cups or chipped ceramic mugs Corrosive and puncture resistant for the toughest trails Safe Food Grade stainless steel Holds 450ml / 15 oz BPA free Care: Rinse and wash before using. Hand wash with mild soap. Wipe down bamboo outer. The wood is real and can warp if left soaking or if put in the dishwasher.