Go for a military jacket and a long sleeve shirt for a casual getup with a contemporary spin. For times when this look is just too much, dial it down by slipping into a pair of charcoal athletic shoes. All in all, an ideal example of relaxed casual style for gents in their 30s.
This combination of a military jacket and a long sleeve shirt is hard proof that a pared down ensemble doesn't have to be boring. Complement this outfit with a pair of grey plimsolls to make a standard outfit feel suddenly fun and fresh. This combo illustrates that moving into your 30s is no reason to shed casual style altogether.