You'll be amazed at how very easy it is for any gentleman to get dressed like this. Just a grey horizontal striped crew-neck t-shirt and charcoal jeans. If you want to easily rev up this outfit with one single piece, why not introduce a pair of dark brown leather casual boots to the equation? There are a myriad of ways to look cool and get through the heatwave, and that's one of them. This getup illustrates that in your thirties your style options are far from limited.