It's June, its in the upper 90s, and I'm outside doing yard work wearing this long-sleeve shirt looking ridiculous. However, this shirt blocks the sun's harmful UV rays and I don't get sunburn, plus I don't get contaminated by flying poison ivy debris that keeps creeping into my yard from the unoccupied residence next door. The shirt does fit a little big on me but that actually works in my favor with the sleeves going past my wrist It's a light breathable material that soaks the sweat off of me, keeping me dry.