I am almost every day by bicycle. Every year, come along with me so 7000-10000 km away. Long ago, I switched on the Schwalbe Marathon Plus. Until then I had often times flat feet. The remaining family members have also been often affected, so the patches of hoses and changing coats with a total of 10 wheels in the family became routine. Since then I have switched to the Schwalbe Marathon Plus I have much more free time again. Instead of an average of 10-12 repairs per year, it is still 1-2. Sure, advertising is "Flat-less" a bit excessive (is indeed the "small print" mentioned). Of course, these coats break. One has kept at and just two days. Then my wife gets a bottle bottom of a broken beer bottle. Since the shell was almost completely cut. Such meetings should be avoided. With "normal" glass shards I had a problem only once. Fies are long, pointed and very stable spines (eg from Firethorn). The thorns make it under circumstances through the protective layer. However, I have now got used to always look up when it regularly klackert driving times what it is. This I have thorns can remove already before they made it through the tread to the hose. If I were so moved on, it would certainly sometime also given a flat tire. Another important aspect is the air pressure. This should be checked regularly and keep to the manufacturer's recommended value. Here the quality of the hose is of course primarily depends on how long does the pressure. The jacket thanks to regular air pressure test with a longer life before the edges begin to tear. Conclusion: The jacket is highly recommended. With a good tube, regular air pressure check and a little attention to unusual noises can leave the repair kit almost home. Even the attrition is very low, so that a long life is guaranteed even with frequent travelers.