I don’t believe in the long sleeve shirt idea. Tried it many times, but it makes it hotter and it gets heavy. Won’t make that mistake anymore. I cut off the sleeves of regular t-shirts. The soaking wet shirt gets airflow from the cutoff sleeves to help the cooling affect. And it’s less weight on you. That’s what works for me better than anything. And yes, my arms are cut up with briars all the time, just used to it.