The Universal Comfort Strap prevents fatigue thanks to its ergonomic design and wide neck section. Whatever the weather, your comfort is ensured through the use of high-performance materials. The Universal Comfort Strap can be quickly and intuitively adjusted to the length you need via a quick-lock clasp on each side. Suitable for all AX Visio, NL Pure, EL, and EL Range binoculars with FieldPro package.