Such essentials as an aquamarine blazer and navy shorts are an easy way to inject understated dapperness into your day-to-day lineup. A trendy pair of boat shoes is an effective way to inject a hint of stylish nonchalance into this outfit. This combo isn't a hard one to create and it's season-appropriate, which is more important when it's boiling hot outside. Relaxed ensembles for stylish gentlemen in their 40s aren't actually that hard, as you can see here.