6mm Hybrid 11" Sewn Prusik Loop. 528411PSL. $9.00. BlueWater's innovative use of alternating strands of Technora and Polyester offer the best performance. The physical properties of Technora allow this prusik to provide a higher slip load rating than others. Safer and more convenient than tied prusiks. Safer because there is no knot that could become loose. More convenient since there is no bulk of a knot. These are strong and easy to use. Sewn with Technora thread. Heat shrink protects the double tacked sewn section of the loop. Made with a combination of Technora and polyester. Tensile Strength: 2,900 lbf. Made in the U.S.A.