Gumby
Veteran
The F-2 carried a Nikon F3+MD4 system with three lenses for years with no problems. I took it on a long trip to Fiji last year and carried two Leica MPs and three lenses all day for many days in extreme heat and humidity. No issues there either. The F-2 in particular is an incredibly usable bag as others have also said.
I agree. The one accessory that I find really useful is the hand strap. I think they also have a waist strap that might help if you load the bag to the point of being heavy.