Keep life moving with our 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles! Slap a few Arkansas and Running Hog stickers on one and make it YOURS! These are perfect for our hilly, University of Arkansas campus, tailgates, and house watch parties! Product Benefits Versatile, middle-of-the-road size TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours Durable 18/8 Pro-Grade Stainless Steel construction BPA-Free and Phthalate-Free Compatible with Standard Mouth Insulated Sport Cap Size & Dimensions 21 oz Volume 621 mL Mouth Diameter 1.91" Diameter 2.81" Height 9.4" Weight 11.3 oz