Do the Work, Anywhere. Getting stronger doesn\\\'t have to be complicated or expensive. Load a training sandbag up and do the work in your garage, park, front yard, or anywhere you damn well please. Features Heavy duty padded handles, proudly NOT rubberised Double pass stitching at every seam Box X stitch reinforced handles 28 bartacks with 42 stitches per bartack Silent zipper pulls Filler Bags included (Note: Filler Bags do not include sand) Specs + Materials 1000D CORDURA® The burliest, sturdiest YKK zippers money can buy Filler Bag Instructions Intended to pair with Filler Bags to protect the YKK Zippers from excessive abrasion. Fill the Filler Bag(s) up with sand, dirt, peat gravel, etc. Place Filler Bag(s) in GORUCK Sandbag Close the Sandbag\\\'s YKK zipper all the way shut Get to work. Cleaning + Maintenance Turn inside out and spray down with a hose and soapy water, removing sand and debris from especially the YKK Zippers. Apply ZipCare to the entire zipper chain, run the zipper up and down it a few times, then hang to air dry. Note: Do NOT use as a slam bag, especially on concrete.