Flexible food-grade silicone walls collapse, slimming the bowl down to a slender 0.5 in. thick and minimizing the space it takes up in a pack Flexible walls let you accurately pour liquid from the bowl into another container Rigid food-grade nylon base is tough enough to double as a cutting board while prepping meals Walls and base withstand temperatures up to 300°F Sea to Summit XL bowl is dishwasher safe Specs Backpacking/Camping Food-grade silicone/food-grade nylon Collapsible (Collapsed) 6 x 0.5 / (expanded) 6 x 2.25 inches 3.9 ounces