Easy, find a washable, felxible, fabric glue. I use it on my Defcon Team Goliath's when a seam busted in the finger. Closed it up solid and water proof.
thanks a lot. But do you have a product name? I am in southern Europe, and products are not the same you guys use in the US. I can translate "fabric glue" but it'd be better if I already knew what I can find here.