This top load hay bag from Classic Equine is extra large making is super easy to fill. The top flap Velcro's shut so that the hay can not be drug out the top. The hay must be pulled from the webbed squares in the front, making it so the hay only comes out in small amounts to lessen waste. It has long adjustable straps with a snap making it easy to hang almost anywhere. The front and back are made of tough poly for durability and the bottom is mesh, to allow dust and dirt to fall through.