Sisal Fibers Known as the raw material for sacks the world over, sisal is truly one of the most versatile fibers gifted to man by nature that finds various uses in the form of handicrafts. Next to cotton. Specifications Natural Sisal Fiber Type 1 Type 2 Type 3 Type 4 Type:Natural Sisal Fiber Type 1, 2, 3 and 4 Form:Container 20â?? (12MT) our 40" (28MT) Package:250kg Natural size of the fiber: Between 90cm to 1.20cm sisal fiber: Grade A Length: 110cm-130cm Moisture: 10%-13%. Impurity: 0-2% max Color: cream white cream, Brown.