The Yeti Rambler Travel Bottle was designed for people on the move. The Leakproof Commuter Cap locks in every drop. The Double-wall vacuum insulation locks in the temps all day. The 360 degree cup lets you sip from every angle and it's compatible with you car's cupholder. 10 oz (295ml) tumbler Double-wall vacuum insulation Keep cold drinks cold & hot drinks hot Lid & MagSlider included 18/8 stainless steel Magnetic MagSlider for easy opening and closing Fully dishwasher safe Puncture & rust resistant No sweat design prevents hand condensation Cupholder compatible To open half twist the lid until it clicks Commuter Cap is 100% leakproof.