PETZL FOOTCORD Foot Loop INTENDED USE: The adjustable FOOTCORD foot loop is used with the ASCENSION handled ascender for rope ascents. DURABLE: This foot loop is made from 100% Dyneema for increased durability. SECURE: The adjustable elastic strap keeps the foot securely in the foot loop. It's compatible with any type of shoe. ADJUSTABLE: Use the integrated plate for adjusting foot loop length. LIGHTWEIGHT: The FOOTCORD foot loop weighs only 40 grams.