The Brew Bag is the strongest most durable brewing bag on the market. Our 200 micron bag is rated for 200 lbs of lift and hold weight. Unlike anything else on the market, our bag is supported by 1" poly straps that cover the seams and bear the weight and strain of the grain. All strapping intersections are reinforced with "X" stitching for added strength and durability. The fabric is welded at every intersection so that will not begin to "run" with repeated use. The Brew Bag is backed up by a 100% Guarantee against manufacturing defects - for life. Consider this bag the last bag youll ever need or buy.