Kaimanu 'Green' Board This board is environmentally friendly. Made from Bio foam, which is soy based. 100% hemp cloth with various weight ratios of 5.9ounce to 4.6ounce with low v.o.c. epoxy and finished with linseed bio resin. The hemp has a natural memory flex and is stronger in tensile strength and strength to weight ratio than that of fibreglass. 5 feet 10.5 inches long x 18 inches wide. Made by Chad Jackson. Attractive logo and is extremely light in weight.