Designed for functionality & convenience, the wider mouth and attached cap provides a more satisfying sipping experience! Made of just stainless steel and silicone accents, bottle is tough enough to handle drops, bumps, and daily wear and tear, while keeping your beverages cool all day long. Swap the lid with the Glacier Sip Straw for easier sips, sold separately. Double walled vacuum insulation keeps beverages cold for up to 10 hours  Silicone loop for easy carrying Removable silicone boot for a slip-free surface Compatible with Glacier Sip Straw lid Secure seal for leakproof storage Toxic-free: contains no lead, PVC, phthalates or BPA material