Crocs All Cast Mens Rain Boot Everything you want in a pair of rain boots & nothing you don't. Seamless, fully molded, & waterproof all the way up. Because no seams means no more leaks. Fastening: Slip On Material Composition: Other Materials/ Other Materials/ Other Materials Care Instructions:N/A Fully molded construction; waterproof to the top!. Incredibly comfortable & lightweight. Iconic Crocs Comfort: soft & supportive.