50 mm velcro  £2.89 mtr 4 mtr = 16 sets of protectors   postage free

http://stores.ebay.co.uk/Select-Fabric-and-Curtain-Supplies/_i.html?_fsub=16


Black heavy nylon fabric  £26.00  4 metres   postage free

http://www.forrestfabrics.co.uk/categories/WATERPROOF--NYLON-FABRIC/


Reflective tape 
http://www.ecrater.co.uk/p/3798340/3m-scotchlite-reflective-fabric-tape-8910-1