Round over all profile with a solid wavy centerline and siped low profile shoulder knobsExcellent for paved path and hardpack light trail ridingKGRD - Layered from natural rubber, reinforced with Kevlar fibers - the protection standard for every tire from the Active LineStandard700x40622WireBeltedBk/Bsk8575050KGRDNoUPC/EAN/GTIN: 4026495775243