Believing in magic isn't difficult when you have the Hydro Flask 32oz Tumbler in hand. And while the performance behind the Tumbler's construction isn't exactly magic (more like science), it's easy to see why the Tumbler is so impressive on the whole. The TempShield insulation keeps your drinks cold for up to 24 hours and hot drinks hot up to six, while the unique powder coating is both slip-free and extra durable. Additionally, the narrow design makes the Tumbler easy to hold and fits easily into most cupholders. And a press-in lid features honeycomb insulation for better temperature control.