An off-road tire is not just a tire. Its grippy lugs unlock every hard to reach place hiding on God's Green Earth! Every morning when you climb in your ride, no matter how boring the trip, seeing the deep grooves remind you that your heart is on the trail and the rest of you is soon to follow. This is a tri-blend t-shirt made of cotton, polyester, and rayon (whatever that is). It's the lightest one I could find, so it won't slow you down when you're doing rad stuff.