Hydroflask’s 12 oz All Around™ Tumbler is ready to grab and go, keeping beverages cold for up to 24 hours and hot up to 6 hours. The new Closeable 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. Hydro Flask have a Parks For All program. This is where they support nonprofit organizations focused on building, maintaining, restoring, and providing more equitable access to parks.