The top grain leather tabs feature the Billingham Quick Release System where cut-outs in the straps engage with the solid brass ClogBalls to provide fast opening with positive and secure closure. We"ve also replaced the tapering tab ends with a much broader design to provide a better grip especially handy when working in difficult conditions. The main leather strapping with its buckles and studs is sewn into the FibreNyte for good weight distribution and to prevent any localised stress points. In addition, the inverted Y" shaped Delta Sling of the shoulder sling"s fixing points prevents tipping and rolling motion as you move even when the bag is fully loaded.Also integrated into the main leather strapping are four sets of discrete "D" holes two sets on front and back. These provide strong mounting points through which our tripod straps can be threaded, plus they can act as lower mounting points for the attachment of our optional 5-point Back Pack Harness.The material we use is our own FibreNyte canvas, a 21st century synthetic alternative for traditional canvas which allows us to make our bags tougher and lighter. Strong and lightweight, it retains the look of traditional canvas, whilst providing much improved abrasion resistance and suppleness. * Waterproofe FiberNyte exterior * Polyester lining using StormBlock butyl rubber * Padded interior * Superflex partition system dividers * 2-piece lid design with a central, double-layered, waterproof seam * Quick release system uses top grain leather tabs with cut-outs in the straps that engage with the solid brass ClogBalls for fast opening with positive and secure closure * Double zipper is fully opened; two integral carbon fiber wands create a wide rectangular frame which holds the bag open