You'll be amazed at how easy it is for any man to throw together a bold casual look like this. Just a white and red crew-neck t-shirt worn with shorts. Finishing with black athletic shoes is a surefire way to add a dressed-down feel to your getup. So as you can see, it's extremely easy to look amazing and stay snug when chillier weather comes, all thanks to combinations like this. Ideal if you're after some incredibly inspiring casual style for gents in their 30s.