Thank you for viewing. This is the RDB03 WARM & WIND STOPPER biker denim from RIDEZ. It uses 12-ounce stretch denim. With a windproof film and a brushed fleece lining, it's designed to be extremely warm (and thick). I didn't feel cold at all even during winter touring. Protectors can be inserted into the outside of the knees and the waist of the pants. (Knee protectors are included.) Although I haven't used them very often, there is some slight wear and tear, but they are still in good condition and can still be used.