Hydration Just Got An Upgrade Meet The Vest Luxury Hanging Sipper A Perfect Blend Of Safety Style And Unbeatable Quality. Designed For Both Kids And Adults This Sipper Makes Every Sip A Luxurious Experience Whether You Re At School The Gym Or On A Weekend Adventure. � Specifications:Capacity: 650Mlmaterial: Tritan (Heaviest Food-Grade Ultra-Durable)Features: Bpa-Free Non-Toxic Anti-Slip Drop-Resistant Silicone Soft Sipper Premium Hanging Strap Vest Sip In Style Stay Hydrated And Carry Your Personality Everywhere You Go