Foss Proof - Highly Resistant and Durable Inner tubes
The lightest and most puncture resistance inner tubes available. A new material completely different to butyl and latex - a special elastomer that ishighly elastic and can be recycled.
There is no sealant in the tube but once punctured the material will create a tight seal around the nail, rock, glass allowing you to get to wherever you need to be then you can patch it up.
Available in 26", 27.5", 29" and 700c.
Check out this real life test - 100 nails into the bare tube and it still holds its shape and air pressure.