The rev it zircon all purpose motorcycle jacket is packed with features protection features outer shell wax coated cotton twill this modern wax coated cotton fabric is water repellent and very comfortable to wear twill is a type of weave with a diagonal parallel pattern providing the fabric with a very stylish look and feel polyester oxford polyester is a manmade material that is strong durable and water repellent this particular polyester is woven into a basket like weave c