You'll be surprised at how easy it is for any man to pull together this casual outfit. Just a white and black print crew-neck t-shirt and olive chinos. Get a little creative in the footwear department and spruce up this ensemble by slipping into brown suede desert boots. If you feel uninspired by your autumn fashion options, this outfit just might be the inspo you are searching for. When it comes to casual fashion for men in their 30s, this outfit is perfect.