The best strap I tried
I use BlackRapid's straps for 7 last years and I like it. It is reliable, convenient and pretty enough. The main issue of these straps that paint on fastener and connector start peeling off after several months of active usage. And connector starts wearing down after 2 years when used with heavy body and lens. So you need to replace strap (or just a fastener) after 2-3 years of usage with heavy gear like 5D3+70-200. I recently bought and tried Luma Loop 3 strap and I fully disappointed: it is beautiful but expensive, overpriced, less convenient and less useful than my old and current BlackRapid's straps - in particular it have discouraging non-detachable fastener.