A blue denim jacket and olive cargo pants are the kind of a never-failing casual outfit that you need when you have no extra time. Add black and white canvas high top sneakers to the mix to infuse a touch of stylish effortlessness into this look. While it can be a bit challenging to look stylish on extra cold days, it's combinations like this that prove it's quite doable. This getup proves that reaching age 30 is no reason to shed casual style altogether.