I went to Home Depot and got a bag of their cheap sand. Took it home and wrapped entire bag in about half a roll of duct tape. Finished it weighs about 67 lbs. I use it for pack training, sand bag get ups, and high rep squats. It is still going strong 3 years later and cost less than $5 since I had the duct tape already.
Sent from my iPhone using Tapatalk