Arc'teryx  Satoro Merino Wool Crew Neck Long-Sleeve Base Layer Top - Women's

It keeps me very warm! I am in Pittsburgh, so this is a must for me. I am going to get different colors. The material is excellent.

I like the Satoro Merino Wool Crew Neck Long Sleeve for winter season or cooler fall days (it's the warmer version of the Satoro as compared with the 'SL'). The fabric feels soft so makes a good base layer, and I was happy to keep living in it after a day outdoors. I'm normally a size XS but I went for a small so that it had a bit of extra space, enabling me to also use it overtop of a tank top as another layer. The small gave more versatility without the sleeve length being too long /impractical. I opted for a bright color which mixes nicely with darker pants. Arc'teryx site says midoutput activity but I have used it on winter runs with a lighter jacket.

[Employee of arcteryx] I absolutely love this base layer! The fabric is soft, stretchy, and the fit is perfect across the shoulders, chest, and hips. Merino wool usually makes my skin itchy, but I haven’t experienced that at all with this piece. As someone who tends to feel cold, I was unsure if it would be warm enough, and it is! On powder turns I worked up a sweat, and on windy chairlift rides I stayed comfortable; the breathability is excellent, drying quickly so I never felt damp. This base layer delivers both warmth and performance in a way that truly stands out.

I've been shifting my base layers to wool for the past few years and this shirt is one of the best yet. It's extremely soft and cozy, stretches and moves with me, breaths well, dries so fast, and is so flattering I can also wear it to the office. I've worn (and sweated) in this shirt for 5 straight days without even the pits smelling. This is going to be my go-to shirt this fall and winter for everything from climbing to backcountry base layer. I would also love to see this in a scoop or zip-neck version.

I have been on the hunt for a comfortable, soft, and effective merino baselayer, and this one hits all of the marks. It's so comfortable and cozy, I've worn it 3 days in a row! I tend to be sensitive to wools (everything feels itchy), but this one works for me. The Phantasm color is a beautiful eggplant purple. I'm usually between small and medium, and I got a medium which fits great. It has an interesting cut where it's tighter around the waist then flares a bit, which is the only thing that's a bit awkward about it. It's stretchy, so I don't mind, but I would have preferred a bit more of an athletic cut. I have a few Smartwool Intraknit baselayers that have served me well, but this one beats those in comfort by far. I haven't been able to test it with sweaty winter activities yet, but I'm optimistic.

[Employee of arcteryx] Since it's the heat of summer I haven't had much chance to wear this but I did take it out on two backpacking trips as a layer to change into for camp and it is super cozy! Next to skin feels great, it's breathable while being warm. While it's not the Lana (IYKYK), this is a good substitute, though it is shorter and more fitted. I sized up from my typical medium to a large and it's great.

I used this base layer for cold weather hikes and runs and love how it kept me warm but it's also breathable. It would be amazing for skiing as well. While it's soft, I find it not as soft though as a synthetic layer (but it makes up for it in breathability) so just a warning in case you have more sensitive skin. It is quite fitted so if you prefer more relaxed fit you can size up.

I've been wearing this thin base layer through all of fall season and pair it with my kyanite base layers in snow blizzards. Its very breathable, stretchy, holds its form well after many washes, and is such a gorgeous purple. Its thin enough to fit under my normal clothing and soft enough not to cause my skin to itch. I definitely love this product!

[Employee of arcteryx] This Satoro Crew Neck is clearly very well designed to fit women's bodies! The subtle shaping around the arms and waist make it extremely comfortable. I wore it for multiple days on a backcountry hike and the merino fabric worked great, stayed comfy and didn't smell at all. I think it'll be my go to baselayer from now on!

I love how lightweight the Satoro is. It’s soft on the skin, fits well, if not a wee bit large and is very breathable. I’ve been wearing these for fall hiking when it’s cool in the morning and over 20 in the afternoon and it works great in all temps. I think it will also be a great base layer for XC skiing in the winter.