We are offering 11x13" sheets of our patent pending lead (Pb) free shielding material easily thermally bonded to cotton and cotton blend fabrics. Lead equivalence about 1/2 mm. Material is 1.0 mm (0.40) thick very pliable currently available in two colors. Cut with a scissors or razor knife apply 10 psi pressure 360F for 20 seconds to fabric substrate, use tee shirt press to apply. Great for special radiation shielding projects or custom tee shirt designs.