The Edge is made from an ultra-tough 420D polyester throughout. This fabric is durable, abrasion-resistant and features a HydroShield coating for added weather-resistance. Side tension straps are linked to the hipbelt. By tightening these straps you can stabilise the load but reduce the hipbelt flexibility. Where balance is critical tightening them can help you feel more secure. However, if you are striding out over easy terrain it’s better to loosen these straps to allow full hip flexibility. Like most options, an array of synthetic materials are assigned in the outer frame. These are specially chosen to adequately mix protection from wear and tear with all mod cons. The predominant one here is Polyester, which has been molded to bear weather-related pressure and accompany your trips for ages until it requires a replacement. In addition, the outer is fully water repellent, ensuring all but the heaviest of downpours leave the things inside unaffected by the outside conditions. In terms of straps, these tend to be pleasingly soft and fairly wide to keep things comfortable as you move around. This is further complemented by a hip strap and chest strap Lots Of Room