ruiser, our largest straw cup to date, keeps 40 oz of your favorite beverage cold for up to 20 hours, allowing you to enjoy everyday adventures without giving your hydration needs a second thought. It features an exclusive dual-function sip + straw spill-proof lid, a comfy soft-grip handle, and a stay-put silicone bottom to keep it upright no matter your destination or how many stops you take on the way. FEATURES 🥤Up To 20 Hours Cold 🍹Up To 9 Hours Hot 🥤Flat Sides & Handle for Easy Grip 🍹Dual Function Sip + Straw Lid 🥤Comfort-Grip Handle 🍹Non-Slip Silicone Bottom 🥤Cupholder Friendly 🍹Triple-Insulated Steel