MK 1.5 updated elastic is featured on all slings to quicken and ease the stowing functionality of the sling; MK 1.5 updated tags for a cleaner, more legible, and higher fade-resistant logo; MK 1.5 Made in USA and Berry Amendment Compliant tag hidden in the rear section of the sling; ESD Pull Tab featured on all slings! Enhanced grip for easier adjustability; Quick-adjust moves naturally in both opening and closing; Super lightweight; Streamline design; Can fold into itself for vehicle operations and quickly be released from storage; Hand-made in the USA; Berry Amendment-compliant materials