Tannus Armour Tire Inserts Option:20 x 3.0-4.0 Single 3/16" (5MM) highest quality urethane

3/16" (5MM) highest quality urethane Dura-Cord for maximum strength

With camber under foot and a rockered tip

as well as smooth seams

They're everything you need for warm dry hands on routine backcountry days

Tannus Armour Tire Inserts Option:20 x 3.0-4.0 Single 3/16" (5MM) highest quality urethaneTannus Armour is the ultimate in tire protection and performance for all levels and styles of riding. Sitting between your tire and inner tube, the Tannus Armour provides 15mm of puncture protection on the top, as well as 2mm of sidewall protection from sharp objects and rocks. Whether you are a city biker, adventure tourer or prefer the off road, downhill or gravel trails, Tannus Armour gives you increased grip and vibration dampening for a smoother,