Kevlar sling Some additional sling maintenance is listed below. Nachteile Kevlar Reepschnur. Extra lengths are available on Slinging. Round slings are pliable and offer some protection to fragile and odd-shaped loads. The interior features a multitude of organizational pockets and RFID protection for travel essentials; ready to go wherever life takes you. Been using the seatbelt 20 years in dry climate. The Edge Defender product line is patented technology. These slings have less than 1% elongation at rated capacity. Slings have the largest work load limit when used in a basket hitch. 2mm Kevlar cord has a 500lb rating, you can get thicker; eg 2. aseewpshwtcxjwesyvdikmcrzxnyyadlwzftrhurfwfehshkuujppgjhfqduwwkzwwtyrozisy