I’m 6’2 225 strong as fuck and I got an XL and it’s fits snugs around the arms and back but doesn’t hug the waist to bad. Only order a xxl if you’re pretty fat.

Very thin and lightweight. Feels good against the skin. Surprisingly warm!

I’m able to wear this and just a hoodie and be perfectly fine in the 30-40s with some wind, it is well worth it

I guess I was expecting a midweight darn tough sock for my entire body. These are not that. The stitching is exposed to the skin and rub against my body and there isnt much material. I have base layers 1/5 of the cost that deliver more comfort with the same level of temperature regulation. They are usable but if given the chance to do this one over I would opt out.

Initial Trial: 3 day icefishing trip, northern MN. December, temps 15-30 deg, strong sustained winds
Comfortable baselayer fit, material blend was good at moisture management & quick to dry. After three days of activity on the ice appreciate antimicrobial properties. Final test will be durability/garment life after repeated adventures & washings. For the $ I expect to get a lot of use out of this top.

Selway Merino Quarter Zip Baselayer

Love it...