Billingham look alike.. Vanguard Arlen 27 Shoulder Bag anyone?

<p>Apparently this Billingham look alike (sort of) with bells and whistles (waist belt, shoulder harness) costs a fourth of the real thing at <a href="http://www.amazon.com/Vanguard-Arlen-27-Digital-Shoulder/dp/B0016HQ988">Amazon</a>, and costs another fourth of that at <a href="http://www.flipkart.com/cameras/camera-bags/itmdy4v8zymcskgd">flipkart</a> (India; at around $50). Needless to say, I'm kind of gloating. The Arlen series is conspicuously absent from the Vanguard websites, so does anyone have any experience with these or the Arlen line in general? Are Vanguard products durable?</p>

<p>This bag is made of polyester or polyspun, not real canvas like the Billinghams, but polyester is supposed to be tougher than cotton, right?</p>