What is Brock foam?
Traditional foam is either open cell and thus permeable to air and water, but soft, or closed cell and impermeable. Brock foam uses special technology to bond together beads of closed-cell foam, forming sheets that have even higher compression set resistance than normal closed cell foams while also allowing air and water to pass right through. When we use Brock foam on our suspension, we also use noncoated fabrics so that moisture will pass through the entire shoulder straps and not accumulate on your skin or clothing.