Contigo 2-Pack 12oz Stainless Steel Tumblers

These tumblers keep drinks cold for 10 hours or hot for 4 hours. It includes a splash-proof lid to prevent spills. Both the lid and body are top-rack dishwasher-safe for easy cleaning. Price drops from $32.99 to just $15.05. Shipping is free for prime members or on orders over $35.