If you're in search of an off-duty but also on-trend outfit, pair a white and blue vertical striped dress shirt with light blue jeans. Get a bit experimental when it comes to footwear and dress down this look by rounding off with a pair of white leather low top sneakers. We love how perfect this combination is when sunny days set in. Take inspiration from getups like this if you want to add more gravitas to your 20-year-old's wardrobe.