All of our PRO USA Muay Thai Heavy Punching Bags are designed for serious training! They are manufactured in the USA and designed to last a lifetime! Each features a shell of industrial nylon rip-stop woven scrim impregnated with a heavy-duty American vinyl coating, and triple-stitched along all stress seams. 100% Fabric Filled, adding the foam padding gives the punching bag more of a softer feel, less pressure on the joints, and adding the hard padding gives the punching bag a super dense feel, great for conditioning your shin, knees, elbows, and knuckles. Made in U.S.A.