If you're a fan of classic pairings, then you'll like this pairing of a light blue long sleeve shirt and navy jeans. When it comes to footwear, this ensemble pairs nicely with dark brown suede desert boots. When spring is in full effect, you'll love this getup as your go-to for unpredictable spring weather. Think it's hard for adolescent guys to master semi-casual outfits? This pairing will prove you otherwise.