Brought back memories! The last cotton I picked was when I was 11 years old. The sacks were made of heavy fabric (like duck)and had a strap across the shoulder and you pulled them along as you picked. The bottoms were coated with tar to keep them from wearing out. The commercial sacks were too large for me, so my mother made me one. When stuffed, it weighed 33 pounds. The most I ever picked in one day as 200 pounds. That would have been in 1954. I would earn about $30 a week and bought my own school clothes. That was a great accomplishment for a kid. Now the cotton is picked by machinery.