Vinyl comes in a variety of weights. The most common weights being used in commercial inflatable products are 15 oz. and 18 oz. This number refers to the weight of the vinyl per square yard of material. Even though 18 oz vinyl is 20% heavier than 15 oz vinyl, heavier does not mean better. Part of our unique design is reinforcing high stress points with extra stitching and heat sealing.  This keeps the quality high, but the weight low.  We stand behind our products with one of the best warranties on the market.