I must confess that I have not tested this product on the field, but for having had the hands, it is well finished and thought. Tested with 5D2 and 5D3 mounted 100-400 and 28-105, it looks to keep the road despite the weight of the gear ... frankly, given the kind of prices of articles (BlackRapid not to mention the I have one of their belt), it is usually the scam ... so thank you polaroid product quality at right price!