I like the Ex-Officio "Air Strip" style shirts. They have roll-up sleeves with a tab to hold the rolled up sleeve in place. The two front pockets are very deep, and there is a third zippered pocket.
The collar is designer to be worn up, to protect your neck from sun. The entire garment has a ZPF 30 or 50 rating IIRC.
The shirts are cut straight across the bottom to facilitate being worn as an outer garment. I customarily wear one of these when flying, as I can roll the arms down for warmth. They are light enough for summer wear and are machine washable.
Check at
www.exofficio.com, or Look at these URLs:
Something similar from LL Bean:
Find the best Men's Tropicwear Shirt, Long-Sleeve at L.L.Bean. Our high quality Men's Shirts are thoughtfully designed and built to last season after season.
I have found, in decades of traveling globally, that these shirts are also suitable for wear with a blazer, when tucked in. Just sayin. I have even worn one with a tie to a business meeting.
Hope this helps,
Tom