Here's what other sites are saying:
Petzl Climb Pur'anneau Sling-Yellow-60 cm G006AA00. The Pur'Anneau is particularly supple for easy handling. It comes in three sizes distinguishable by color-coded stitching for easy identification in action.
Features of the Petzl Pur'Anneau Sling Lightweight and exceptional durability Great flexibility to facilitate manipulation Available in three sizes, differentiated by the color of the seam to facilitate identification during the activity
Petzl's Pur'Anneau Sling forgoes the usual construction of climbing slings with an innovative polyethylene for a lighter weight, stronger durability, and suppler feel. Its stitching is pure nylon, and Petzl color-coded each length for easy identification when you're saving the longest sling for the anchor and want to extend your placements with a shorter sling.
Cut weight without sacrificing strength. The 10mm Petzl Pur'anneau sling in made of extremely light and strong high-modulus polyethylene that offers exceptional durability and abrasion resistance.