When you're shooting with a telephoto or in low light and moving too fast to set up a tripod (or if you just want to travel light), the Benro A38F Classic Aluminum Monopod With S2 Head may be your new best friend.
This machined aluminum support reaches a height of 63.2", closes down to 23.2", and supports 5.5 lb. It only weighs 2.3 lb, so you'll barely know you're carrying it. The S2 head is supplied with a QR4 quick-release plate, built-in bubble level, and separate pan and tilt drag lock levers. Opening and closing the 4 sections is quick and easy with the flip lever lock design, and the ball and socket design plus extra wide base rubber feet improves gripping ability on any surface.
An attached wrist strap and a closed foam grip give you a secure hold on the monopod (and your camera!), and the grip insulates your hands from the aluminum on cold days. The head plate has a reversible 1/4-3/8" screw.