SmartwoolMen's Merino 250 Cuffed Beanie Thermal Tops (pack of 1)

Q: What is the weight of this product?

i would guess only a couple of ounces. i find it very light but extremely efficient at heat retention

Q: is this a 150 or 250 weight merino wool? Smartwool makes both but this listing doesn't indicate and that's a huge difference in warmth.

Looks like the 150, not labeled inside. Comfortable down to about 20 degrees with no wind.

Q: Is this really 100% merino wool even if the label says it? Are they allowed to blend other materials like polyester and still call it merino wool

Yes this is 100% merino wool. I am returning it as it fits very tight on my head. My head is on the larger size. I purchased this Smartwool Boundary Line... https://www.amazon.com/dp/B09991T3FM?ref=ppx_pop_mob_ap_share It is a mix but much more comfortable.

Q: What is the length of beanie uncuffed?

I've had mine for about 3 years and it's 9.5 inches from top to uncuffed bottom. I've washed it a handful of times but always line dried it, so it may have stretched in the years or shrunk, I don't know. Regardless, it's long enough to cover my ears entirely even while still cuffed a little, and I have a big 7 3/8" head.