Baffles provide the internal structure of an inflatable.Have you ever seen a bounce house with a mattress that has ballooned out? Blown baffles are likely to blame. That is why we only use baffles that are secured by Commercial Grade Vinyl at 1400*1400 denier that provides maximum strength and durability.This material is also perfect for inflatables used in an indoor environment(as they often receive much more use and abuse)and is key to the legendary durability of our products.