This laid-back pairing of a denim jacket and black skinny jeans is extremely easy to throw together in no time flat, helping you look amazing and prepared for anything without spending too much time rummaging through your wardrobe. Add a different twist to this ensemble by sporting burgundy casual boots. A vivid example of functional fashion, this ensemble must be in your front hall closet this winter. Take cues from getups like this if you want to add more gravitas to your 20-year-old's style.