A white dress shirt and skinny jeans will inject your current wardrobe this cool and casual vibe. You can get a bit experimental on the shoe front and dress up your look by finishing with a pair of blue leather double monks. This ensemble is a wonderful pick if you're crafting a standout outfit for in-between weather. So if you're looking for style tips on how to dress as you head into your 30s, this getup is a good example.