This combination of a crew-neck sweater and a crew-neck t-shirt speaks laid-back attitude and relaxed menswear style. Introduce black athletic shoes to the mix to infuse an element of stylish nonchalance into your look. An amazing example of transitional style, this outfit is a must-have when spring sets it. Think you can't pull off cool casual looks as you get into your 60s? This combination is solid proof of otherwise.