The gloves are made of natural cow leather and are insulated by the thinsulate fabric
Carbon fiber on the knuckle

FAQ
1 What are motorcycle gloves for?
Motorcycling gloves are typically gloves made of leather. They may have gauntlets to protect the rider's wrists from injury, and help reduce drafts while riding in colder climates. Motorcycling gloves typically have reinforced palms intended to protect the rider from abrasion injuries in case of an accident.

2 Why do motorcycle gloves have knuckle protection?
When people think of motorcycle riding gloves, they usually picture scraped up hands and broken fingers. And while a broken finger can be enough to keep you off your bike for a while, a broken knuckle could bench you indefinitely. But ensuring your gloves can protect your knuckles is well worth having warm hands.