ARISUN METRO CRUISER 700x32 BLACK WIRE/60 KD/REFSmooth top tread with deep channel vents water away from center for improved wet weather traction Wrap tread design on sidewall for improved cornering traction KD 1. 5mm thick composite mixture of rubber and Kevlar fiber belting increases protection from thorns and other piercing debris REF Reflective sidewall striping or hotpatch to aid in low light visibility