[TRAVEL TO GO TUMBLER] Easy to get a smooth cold brew concentrate with more caffeine and 60% less acidic than traditional hot coffee. The portable cold brew coffee maker has a flavor-locking lid to seal flavor and keep your drink fresh, great to brew & drink a delicious cold brew drink any time ! [DETACHABLE MESH & SPOUT] Fine filter mesh almost full contact between the coffee powder and the water to extract the flavor of the coffee, no residue leakage. The detachable filter mesh is simple to use and easy to clean. [AIRTIGHT LID & SILICONE HANDLE] The sealed leak proof cover effectively seal taste after brewing. channel for coffee pouring and soft silicone handle are portable to take out for camping, business trip or daily home use. [ FREE MATERIAL] The bottle is made of food grade PP material, extremely and light weight. Do not worry about breaking during outdoor use. Do not dishwasher safe. [PORTABLE DESIGN] Easily make smooth cold brew with any type of coffee grounds. Simply add coffee grounds, pour water, brew overnight and enjoy. Clear scale for control the ratio. Max capacity is around 450ml/15oz.