The North Face Men's Apex AlphaChalk Convertible Pant

These pants have been my go-to backpacking, hiking, outdoor activity, etc (you get the idea) pants/shorts ever since I got them.

PROS
very comfortable
non-restricting
fast drying
cool (temperature wise)
not bulky
well designed pockets (still feel comfortable when loaded with stuff)

CONS
not made anymore; at least not the same model, but a similar one may be available