Constructed from a Synthetic Tarp with a 600D Polyester reinforced nose and 3mm of PE foam padding.Key features include; extra reinforcement at the nose, 35mm webbing shoulder strap, 35mm webbing carry handle, carries one board, zip, web hanging ring at nose, sewn in fin slot (only 8ft and over bags), and a double zip with plastic sliders.The white finish of the boardbag is essential, reflecting sunlight and heat, and thereby protecting your surfboard from delamination and also preventing your wax from melting. We say: Take note of the thickness of these bags - 3mm. This is thinner than the other brands we stock which are normally 5mm. (That's why they're cheaper).