Circular FIBC bags generally consist of woven polypropylene fabric, which provides strength and durability. The circular construction eliminates the need for side seams, making them less likely to tear. The design typically includes lifting loops or straps for easy handling by forklifts or cranes. These loops are often attached securely to the bag's body.
The bottom of the bag can have various designs, such as a flat bottom, conical bottom, or duffle (discharge spout) bottom. The choice of bottom design depends on the type of material being stored and how it needs to be discharged.