Navy SEALs to use Blackhawk uniforms
A good story about it here. We saw the uniforms at their HQ. Each arm and leg has two built-in tourniquets, with handles concealed in velcro-sealed pouches. In the event of a severe extremity wound (say a limb shredded by an IED) blood flow can completely occluded in ten seconds. With body armor and Kevlar helmets, about 60% of preventable combat deaths are due to bleeding out from extremity wounds.