Every Sip Stays Icy Cold For Up To 24 Hours. When Playtime Wraps Up, The Perfect Refreshment Is Waiting On The Sidelines. With A Colorful, Easy-to-clean Straw Cap And A Durable Perforated Flex Boot, The Wide Mouth Kids Bottle Is The Perfect Companion For Any Adventure. Please Note That The Wide Mouth Straw Lid Is Not Leakproof And Is Not Intended For Use With Hot Liquids.