To help you narrow your search, I consulted a panel of stylists, fashion designers, and all-around cool people to find the best long-sleeved T-shirts for men ... to functional white T-shirts ...
Our favourite is this half-buttoned design. Buy now £150.00, Love Brand & Co Uniqlo 100% Premium Linen Shirt (Regular Collar) - white Every man needs a white linen shirt in their shirting arsenal.