Classic size casual jeans top Zip fly range Denim Selvage Top Classic style. The original slim fit jeans. Invented by us in 1948, the world’s first slim jeans are not too tight or too loose, but perfectly in between. With a mid-rise and zip fly, Rider has a slim-cut leg from the thigh down to the ankle. A true denim icon.Regular Waist - Slim Thigh & Knee - Slim Leg Opening - Zip Fly.