The Metolius Monster Sling falls right in the middle of the Metolius lineup when it comes to thickness. This means that the sling is strong and burly enough to last for multiple seasons of gnarly trad climbing, but it also remains supple and light enough that you dont feel weighed down by it. Metolius made its Monster out of nylon and Dyneema in order to shed as many grams off the sling as possible without hindering its durability. Get the shortest sling if youre looking to extend your pieces, the medium sized sling for extending your pieces under roofs or at corners, and the longest size for an excellent anchor system.