Duffle top, Flat bottom, Weather Resistance Anti-UV 3 Years. The bag is breathable. "Not waterproof" means water can seap out. Water can not break the bag down. Search "FIBC lining" for waterproof solution.
SWL(Safe Working load): 3300lbs.(1.5 ton), Safty Factor: 5:1 (which means the bags have been tested to 5x the Safe Working load)
100% Virgin Polypropylene (PP), Virgin polypropylene provides better strength character than recycled. Strong and Reliable. Not recycle polypropylene, Lead free
Measures: 43" Dia. x 43" H Tubular Bag. Capacity: 1.36 cubic yard (276 Gallon)
The bag was originally designed and used for earthquake reconstruction. It's solid enough for super heavy duty job. It can be used for building, recycling, minerals, feed, fertilizer, agricultural industries etc.