Wonderful product & I love the shiny & professional look & feel of them. So Ive spent years drying my kids boots the old fashioned ways - clothes dryer and heat vents. The upper straps are leather. Now we get to see what its like to have your Fortress shot out of the sky 25,000 feet over enemy territory, to parachute down behind enemy lines, the new battle for survival and great details about what can happen to individuals of a crew and what it takes for them to get back to friendly lines. Not pleased whatsoever. -Really great if you have a car without sounds. I’m 5’11” and normally a size 10/12 and the Large fits like a glove! I simply cut off the laces and the shoe still securely fits. 5 in case you were wondering. I use them everyday and the fit comfortably.