The old Cabelas "Safari" clothing line were some of the best available. But, they were discontinued some time ago. I prefer knit, synthetic shirts for hunting and general attire but for Safari decided to break over and get some cotton button down items. I went to Ebay and found three of the Cabelas shirts in my size in Khaki, Olive Green and a rust brown color. The quality is stunning and I am sure that they cost a bundle when new. I also have a trio of Orvis shirts in all cotton. One is a polo style golf shirt in sea green, for travel days and another is a button up short sleeved number also in medium green. The last one is a long sleeved button down in dark olive green. It is quite heavy and might be too warm for hot days. All the Orvis shirts are made in USA which is rare these days and those are still made with MSRP of $90/ea. Nothing in my ebay hunting wardrobe was over $15 and most looked like new. My usual plan is to wear a camo tee shirt under the long sleeved button down shirt with a cotton hunting vest over that. For very cold mornings I have a Kenya East hunting coat that can do the job. It was also an Ebay special.
Apparently lots of older American men decide to go hunt Africa once or twice before they croak and when they do, Granny sells all their sheeit on ebay, lol. Most of it looks like it was never worn.