Hydro Flask's black 16 oz All Around Tumbler is ready to take on morning brews or microbrews, keeping beverages cold and hot for hours. The new closable press-in lid Hydro Flask's black 16 oz All Around Tumbler is ready to take on morning brews or microbrews, keeping beverages cold and hot for hours. The new closable press-in lid slides snugly shut to keep splashes at bay. The All Around Tumbler is incredibly comfy to hold and is easy to fill, sip and savor.