I like the Stroppa straps from Poland, they're about $45 and fat and round Paracord woven into about 1/2" diameter, any length you like. Leather ends and eyelet protectors, round rings. Very nice quality. Other similar straps are 2x the price, I had a Marathon that was $100 that's the pretty much the same thing, suspect these guys are the subcontractors.
http://www.stroppa.pl/?c=cee236228e9a
No offense to any other strap makers out there! But I do like these because they are smooth and you can slide the strap unlike leather or nylon with rubber embedded. Once I had a Domke fall apart from sweat, the rubber came off in a greasy stain against my neck, talk about Gripper!