Like its counterpart the short-sleeved tee, the long-sleeved ... of the T-shirt is its thickness. It’s made from 100 percent heavyweight cotton with a fitted silhouette and ribbed collar.

As soon as the dads of America get word of this bargain, I won't be the only one snatching these by the handful.

Long-sleeved ... white T-shirts and oxford button-downs you can wear with a tie or untucked. Update on March 11, 2025: Added Lululemon’s Heavyweight Cotton Jersey Long-Sleeve and testing notes ...