MERIWOOLMens Base Layer 100% Merino Wool Midweight 250g Half Zip Sweater for Men

I bought this top for use as a base layer on colder runs (under 20F) due to wool outperforming polyester in warmth, comfort, wicking, and smell. The medium fits my 5'11" 165lb body well, being almost but not quite skin tight, and with a perfect arm length. Love having the half-zip option as it makes regulating temperature while running that much easier.Unfortunately, I discovered a dime-sized hole in the top after a single wear, and I was outside of Amazon's 30-day return window having bought it earlier in summer. FORTUNATELY, Meriwool has a 1-year warranty, and they actually honored it instead of weaseling out of it, which earns major respect in my book and is the impetus for leaving this 5-star review. You simply need to send them a photo of the defect, your order number, a screenshot of the order, and then they'll provide you a RMA pdf form to fill out for the exchange. You pay return shipping, and that's it.While I was waiting for the exchange, I ordered a nearly identical half-zip from Meriwool's competition -- Smartwool -- at nearly double the price to compare. Turns out I actually prefer Meriwool's half-zip for two reasons besides just being a better value: 1) Meriwool is a tighter fit for sweat wicking vs Smartwool (also a medium), and 2) Meriwool's collar doesn't awkwardly flop around when unzipped like Smartwool's does. Will definitely be buying more in the future for casual wear vs only winter running.

Fits well, my husband is 150 ish pounds, about 5"10". He wears at least one of the many wool 1/4-1/2 zip sweaters every day in the cooler weather. These wash well, I use cool water, all natural detergent, no softener and I dry them by pulling them over the backs of our kitchen chairs. We have several MeriWool brand items and I've never had a problem with shrinking. No issues with odor on something that is worn frequently between washes.

I found this very comfortable directly on the skin, and you can't beat the price. I have a similar (250g merino) base layer from Woolly, which is luxuriously comfortable, but that's a much pricier product. For $60, the Meriwool was spot on. I'd buy it again.

These are the most comfortable and best fitting thermal tops and bottoms. Within one week of receiving my first pair of tops and bottoms I ordered a second pair.The quality of the product is outstanding.

These are great and well-priced. I'm 5'11" and 163lbs. I went with medium. I'd prefer a tighter fit, but it hugs the body reasonably well for me. Perfect for Spring and Fall. I bought 5 of them in different colors.