Both the misses and I wear Roof crash helmets which I brought over from the UK with me 6 years ago. Problem we have is the thin layer of foam rubber which lines the helmets has disintegrated making the bare polystyrene ( ? ) rather uncomfortable. Has anyone heard of anywhere where we can have this replaced or does it mean new helmets ? Personally, and speaking on behalf of myself I find the Roof helmet to be the most comfortable I have worn in 42 years of motorcycling. Can Roof helmets be purchased new in Thailand ? Any information will be gratefully received.