Stay refreshed during long days outdoors with the Ridge Monkey Thermo Mug DLX Brew Set. Its push-fit design and water-tight lids keep your hot or cold drinks secure, so you don't have to worry about spills. This mug features double-walled insulation to keep your beverage at the perfect temperature, while its polypropylene construction provides reliable durability. Plus, the square shape makes it simple to stack and store. Refresh yourself no matter where you adventure!