Sleeves on the medium a bit long for me for casual wear but on the bike works well. I stay cool while moving in warm weather and comfortable when the air gets a little chilly. I also bought the blue version in size S but have not yet tried it out on a ride. I am hoping the fabric holds up but so far really like the Helios.
I am 5'8 and 168lbs

Great sun hoodie. Wore it for a day on Bike ride across Georgia. Worked great. I did not get burnt and did not over heat in 90 degree humid weather.

Thanks

…cool in temperature only, of course.

Seriously, I already own four of these and they are my go to mountain bike jerseys any time it’s sunny, which is almost every day I ride in Park city.

The benefits:
1. I only have to put sunscreen on my face and my legs from my socks to my shorts.
2. Until you have worn one of these, you cannot imagine that you are actually going to stay cooler with it on then you would with bare arms. Really.
3. Even though I suspect it makes me look like some crazy old man in the desert, I love wearing the hood under my helmet for maximum sun protection. Oh well, being a crazy old man is better than skin cancer, right?

I'm a big fan of sun protective hoodies, and this one checks all the boxes. Light weight and breathable, sizing is spot on, and itblooks good. I have three so I'm never without.