This pairing of a windbreaker and a zip sweater is proof that a straightforward casual outfit doesn't have to be boring. Wondering how to round off? Add a pair of white canvas low top sneakers to your outfit for a more casual twist. Keep this combo in mind when spring sets it, and we promise you'll save a ton of time crafting a look on more than one occasion. And if we're talking casual fashion tips for 20-year-olds, this combination is ideal.