Démarrage rapide 20 (600 ml)

This is a good bottle storage and small pouch system. Plenty of water storage for marathon training for me and enough space for gels and keys. However, the old model, which lasted me 10 years, had a great system on the strap with Velcro ties that held the size firmly in place to stop it slipping. But Nathan have changed this - on my first run I had to constantly re-tighten which is very annoying. I’ve just about managed to manually adjust it to do the same as the old one by buying some Velcro and cutting the straps from the ties they come with. But the old model wasn’t broken so why did you try to ‘fix’ it?!