Unfortunately, due to possible user error when a strap breaks, we are unable to warrant them. We know that sounds bad but we have designed and tested them to be used for over 2,000 times. We believe they will last you a long time - perhaps even longer than you need them for! All that said, straps are funny things and we do funny things with funny things - so, we have included 6 straps in total of which two are spares!
If you need more straps and other Fly6 accessories, please check our website, https://cycliq.com/product-category/accessories/.