Wear a crew-neck t-shirt and navy jeans for relaxed dressing with a contemporary take. If you need to easily ramp up this look with one item, why not introduce a pair of olive boat shoes to the equation?
Olive Boat Shoes with Crew-neck T-shirt Casual Outfits
If it's ease and functionality that you're seeking in menswear, wear a crew-neck t-shirt and charcoal jeans. Olive boat shoes are guaranteed to bring an added dose of style to your outfit.