The document describes a new type of sling called the Marshall sling. The Marshall sling combines Ferreterro Cranelover polyester slings with Dynaflexx protection sleeves to provide protection against sharp edges and abrasion. The Dynaflexx sleeves provide both anti-cut and anti-abrasive properties. Testing has shown that Marshall slings have superior efficiency and longer service life under extreme usage conditions compared to other options. Marshall slings are also more economical due to their longer lifespan and lower overall costs than alternatives.