Three-quarters the size, double the fun. Wait, does that add up? Don?t ask us, we were never that good at math. Besides, when?s the last time you actually used algebra in the real world? A tough, portable and packable bottle like this, you?re going to use every day; on the beach, on the site, on the road. Algebra? Not so much. Weight: 1.30Dimensions: 3.40L x 3.40W x 11.80H inLeak Proof18/8 Stainless SteelDouble Wall Vacuum InsulationInsulated lidBPA-free