Nano paracord is the smallest paracord, approximately 0,75mm in diameter.
Micro paracord is the smallest paracord after the Nano paracord, approximately 1,18mm in diameter.
The paracord type I is considerably smaller than the paracord 550, it's diameter is about 2mm compared to about 4mm for the paracord 550. The braided sleeve is made of 16 wires which gives it a relatively smooth appearance. Inside the sheath is 1 strand having a strength of about 35 pounds. This inner strand is itself composed of 2 yarns having a resistance of approximately 17.5 pounds each.
275 paracord is braided from 16 strands and the core made up of 4 yarns.
The 425 RB paracord is a paracord containing 3 inner strands with a resistance of about 35 pounds each. Each inner strand is itself composed of 2 strands having a strength of about 17.5 pounds each. Its sheath is braided from 16 strands for a total strength of 192 kg before breaking, and an elongation of minimum 30%. With a diameter of about 3mm, this paracord dries quickly, does not decompose and is not sensitive to mold. Made in the USA by an army supplier.
1250 Paracord Dyneema is made from one of the worlds strongest fibers, the Dyneema fibers are used in the bullet proof vests. The minimum break strength is 1250 Lb ! Paracord Dyneema is more than 2,5 times stronger than the 550 paracord.