Materials like felt, fleece, boiled wool, and certain tightly knit synthetics possess an inherent structural integrity that prevents unraveling when cut. These textiles can be left with raw edges in final garment construction. Leveraging this property eliminates bulk at the seams and drastically reduces manufacturing time.
Heard on the job
Since this neoprene is self-finished, we can just leave the hem raw and save an operation on the production line.