I'm trying to make a hipbelt similar to the hipbelt on the ULA Circuit, which appears to consist of two densities of foam--one, a broad, thin and relatively rigid foam that gives the belt its structure (this foam is on the "pack" side of the hipbelt); and two, a thicker softer foam that is wrapped in 3-D mesh (this foam is on the "hip" side of the hipbelt.
Overall, this combination of rigidity and softness combines to make an excellent belt for both comfort and weight transfer.
I'm trying to source the thinner, stiffer, more rigid foam. Does anyone know where this type of foam can be purchased? Is the GG thin light pad relatively rigid?