A SAM Splint supports a fractured or broken limb no matter where you are. Made of a thin core of aluminum alloy and slotted between two layers of closed-cell foam, the SAM Splint bends into any of three simple curves for a strong and supportive splint when freshly unrolled. Its pliability is unaffected by heat, cold and altitude, and it's reusable and compatible with all standard cleaning solvents. Roll or fold it up for easy storage in emergency- and disaster-preparedness kits, backpacks, RVs, boats and more. Waterproof.