Enjoy on-the-go hydration with the YETI Rambler 30 oz Travel Straw Mug. The rust- and puncture-resistant stainless steel construction affords durability, while the double-wall vacuum insulation helps keep drinks cold. The leakproof design helps prevent spills. YETI Rambler 30 oz Travel Straw Mug Navy Blue - Thermos/Cups &koozies at Academy Sports