Best men's casual shirts and t-shirts

Start with the LUX Short Sleeve Button Down. It's the most versatile of the bunch: a slim, true-to-size cut with four-way stretch and UPF 50+, so it works for a hot day out and still looks sharp at dinner. Hundreds of ratings back it up.

Who the others suit:

• Bonobos Everyday Shirt — relaxed fit in Supima cotton; the pick if you like room through the body and a longer hem.
• Los Angeles Apparel cotton twill — heavier, plain-spoken workwear feel; best for someone who wants a shirt that takes a beating.
• Washed Lightweight Shirt — the easy, breezy option for layering in warm weather.
• Ribbed short sleeve button down — stretchy and true to size; a good cheap second shirt.

I skipped the women's-cut blouses and the odd one-off listings that came up.