The Ideal Coffee Flask for Every Coffee Connoisseur. Early morning adventures are better with our 12 oz and 16 Oz Hydroflask Coffee Flasks along for the ride. TempShield double wall insulation keeps your iced coffee cold for up to 24 hours or your hot dose of caffeine hot for up to 6. The 12 Oz flask fits under most coffee brewing systems, so its easy to pour, sip, and go; while the 16 Oz flask holds enough Coffee to get your all-day fix. Features: Comes with Hydro Flip Lid Use at most coffee shops for less paper cup waste TempShieldTM 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 What's in the box 1 x Flask