I tried a couple different ones. These in "my opinion" are the best out there. Servas Survivor CTRB Drifter S. Multiple layers of flat protection, Kevlar & Nylon. Inverse tread for easy no vibration roll. Wear great, exellent dry and wet traction. Only minus $40 each. I use them with standard bike shop tubes. No slime, no hvy duty tubes, just rim strips. Have about 500 miles on them with no flats, barely showing any wear. Look the site over and find the cross section of them. Best bike tires I have ever had.