How To Repair A Rip In Your Wave Tribe Boardbag
Hemp can be repaired using fabric iron-on patches the same way you would repair your torn jeans or favorite overalls (do people still wear those)?
Buy the fabric patches online.
Alloy mesh (the silver side) can be repaired using a repair kit for bicycle tires.
The kits are sold at bike shops and come with patches and glue to seal up your board bag wounds.
For more cheap-ass repair type you can just put some duct-tape over the ripped area and draw a picture of your dog over the scar for artistic effect.