Reviewer: Stuart Waters (gelfling) from United States This thread is awesome and so strong that I may use it for my stitching needs. Some people have told me that they did not find this thread durable enough but in my opinion that was due to the stitching they used. For the toys Iâ??ve made using this thread I use a close blanket stitch followed by a back stitch just below the blanket stitch. Although this method may sound like an overkill it will ensure that the seams are strong enough for the any toy, further more, by sowing the toy inside out the seams are hidden to protect the Kevlar and seams therefore increasing the durability of both the seam and the material being sown together.