Sea to Summit’s X-Bowl is a collapsible hybrid composed of a rigid cut-resistant base that’s made of high-temperature food-grade nylon. Its walls are made of food-grade flexible silicone, so it folds flat for compact packing. Collapses flat for compact packing. Cut-resistant, rigid nylon base can be used as a cutting board. Silicone sides can withstand temperatures of hot foods and nearby hot surfaces up to 300 degrees Fahrenheit. Withstands freezing temperatures. Flexible walls make pouring liquids is easy. Spill resistant, versatile shape. Holds 22 fl. oz.; measures: 6 in. diameter x 2.25 in. deep. Weight: 2.8 oz.