When one lagging on vacation like me a 5D Mark III with a 28-300 L series, it can quickly be heavy in the hand (around the neck is forgotten !!!). This harness is really very good, very solid and easily adjustable. Well obviously sitting it's complicated (especially if the lens hood is the lens) and it keeps you warm despite its airy confection (it must be properly fitted close to the body to prevent camera shake) . I recommend "warm"!
