Customer Reviews Smartwool Intraknit Thermal Merino Base Layer Crew

This is a perfect baselayer. It is more snug, which I like for space-saving layers while traveling. Although it's a tighter fit, it doesn't ride up at all.

Nice and warm as base layer. Easy to wear under sweaters or jacket

For the Christmas markets

Perfect for hiking! Love the slim fit!

Love the quality! Very cozy!

I love the Smartwool brand and have quite a few items. I have another Smartwool long sleeved shirt in a medium and the fit is much looser. I will keep the new one though even though it's snugger than I like. It should be ok as I would layer a vest overtop. Not sure why the sizes changed. My other shirt I ordered at Christmas time so it's not old.

Let's discuss the positives. This top is amazing for back country skiing and hiking. It wicks super well while still keeping me warm. Too hot for running, but perfect for colder temps. I loved my first top so much I bought a second 6 months later. With the double layer and 50% synthetic material I thought it would have better longevity. I have had owned many merino tops in the past so I understand they're delicate. I wear this top 1-2 times a week for 1-2 hours in the winter months. After 1 year of use I had to sew up 3 separate holes from gentle wear, one rather large one in the armpit and the others seemed to have formed at the X mark where they've patterned the shirt and material changes. Merino does not med well so I don't expect the holes to last. I'm really hoping the 2nd shirt doesn't breakdown.

3 starts. This is my first intraknit base layer. I have 20 year old classic merino base layers that are still like new. This new one snags more and is not worth the extra money. It is also not quite as soft against the skin. Will stick with the old classic. Nice but disappointing.

This shirt looked great in the store! However, after wearing/ washing it only 4 times, it began to unravel/ get fuzzy. I washed it in cold water as recommended. I work on a ship as a guide and really expected this to be my "go to" shirt this summer, but it was so tattered immediately, I didn't want to destroy it completely before asking for a refund.

I returned it, it wasn't what I was looking for