Clip this mug on your backpack and youre ready for an outdoor adventure accompanied by your favorite tasty beverage. Double-wall, stainless-steel mug keeps 16 fl. oz. of liquid hot or cold. Splash-proof lid is easy to sip through while on the go lid screws into place, ensuring it wont pop off. Spring-loaded gate allows you to easily clip the mug to any strap on your backpack. Non-skid pad on the bottom keeps the mug from sliding away. Stainless-steel body and liner cleans up easily.