Great for many things in the sun! I have several and keep warm in a cotton t-shirt. However, there are great long-sleeved shirts for spring and autumn. I would buy a size larger than normal if you want it to be loose to allow for ventilation. EVERYONE will find that the sleeves are too long. I think that's written in a lot of the comments.
Gildan Performance Men's π Clothing and Shirts with Moisture-Wicking Polyester
44 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
Men'S Regular Fit Short-Sleeve Dress Shirts By Allsense - Look Stylish And Professional!
41 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review