Probably one of the worst designed products on the market. It should be illegal to sell this item as the quality is absolutely horrible. I have had blender bottles that have lasted 5-10 years and never broken through daily used and dropping constantly. This product I ordered for a giveaway promo item and I am embarrassed to have my name associated with it. It has a rubber seal that must be tightened beyond belief to have any kind of water proof capabilities, nearly impossible not to leak. Also, unless you plan to only carry over a floor made of memory foam, if you drop this it is a 50/50 chance it shatters. Also, forget about putting in the dish washer or your logo you want to put on it will be gone with one wash. This review may sound dramatic but it is the honest truth. DO NOT ORDER