Brew your favorite coffee on backpacking excursions and camping trips with the Ultimate Survival Technologies FlexWare Coffee Drip. This collapsible coffee drip works with a number two paper filter, brewing coffee into your favorite mug as you pour hot water over the grounds inside. It takes a couple of minutes for the water to soak the grounds and permeate through the filter, making a delicious cup of coffee in the process. The heat-resistant, food-grade silicone won't create harmful byproducts with hot liquids, withstanding temperatures up to 450 degrees Fahrenheit. Plus, it's dishwasher safe for deep cleaning once you return from camping. Most all filter sizes will work and once in place the grinds will secure it while the water moves through. Easily folds up compact and can store away in the smallest places. Shaped to fit snug over an exact size match mug or can securely sit on top of smaller cups and bowls. Sleek design saves space and makes storage a breeze. Perfect for RV, camping, or backpacking.