The No Fuss All Muss
Pretty classic and low maintenance, this style will linger season after season. There is a version that works for most guys, including Chris Hemsworth above, which makes it easy to avoid messing up.
What do I ask my Barber?
Ask if the barber can do a scissor cut where the sides and back are relatively the same length all around, leaving an inch and a half to two inches all around. Ask for the barber to point cut for added texture making it easier for a messy look.
How do I get it to look like this at home?
Using a good matte paste will give you the mussed up look (see product recommendation on the next slide). Apply it to wet or dry hair and simply style.
How often do I need to come back and cut to maintain this style?
Once every 4-6 weeks.