is this tall enough for a man 6' 2"?

Excellent question! This particular walker is adjustable up to 37 inches which translates to 3.08 feet so it should be tall enough. A great way to see if this is comfortable is by taking a tape measure and measuring 3.08 feet and seeing if that'd be a comfortable height. A tip we always offer is to have your arms bent at a 30-degree angle for best comfort and use (see the diagram below). Hope this helps!