Creates a Kevlar reinforced Fibrelink seal When a puncture happens, fibers rush into the wound and instantly stop air loss As the tire flexes while it is ridden, the FiberLink mesh tightens and reinforces itself, creating a confidence-inspiring seal that will last ride after ride Utilizing Dupont Kevlar® fibers, FiberLink seals are extremely robust once they plug a hole Latex free, will not dry out inside the tire once installed Will last the entire usable life of the tire No refreshing required; no gradual weight gain CO2 compatible and unaffected by cold temperatures Naturally non-toxic and hypoallergenic Water soluble and cleans up easily with a wet rag