Customer Reviews Smartwool Active Ultralite Long Sleeve

I love how light this is. I've worn it in low 40s at the start of a run that later warmed to low 60s. It kept me warm despite how lightweight it is but also breathed really well and kept me dry once it warmed up. My only complaint is the sleeve length and fit. The sleeve are very long and cover my hands while also being pretty baggy and loose on the arms. It fits fine in the chest and length of the torso is great. Still a very versatile piece of apparel. #smartwoollove

Used for cycling and all around wear. Fit, finish and comfort are superlative. I'll be ordering a couple more for all seasons.

It is my base layer for a Swiss alps hiking trip next summer. Runs small, but base layers are supposed to be small and form fitting, but I wouldn't wear this out in public without a tshirt over. My bottom belly is exposed and is is very form fitting.

Great running shirt

Wear for everyday use, as well as hiking Nice looking, comfortable, warm and cool, all at the same time

Smart wool long sleeve shirt perfect for hiking from Cadillac Mt. in ME to the Rockies. Helps take the chill out of paddling cool fall mornings on the Penobscot River or Damariscotta Lake, ME. Perfect thickness for flexibility.

I returned it just because I decided it was duplicating something I already have. Good material, very soft and lightweight.

I returned this shirt because I felt I was just duplicating another shirt I had. Overall it is extremely lightweight and comfortable on the skin. It was a little short in the sleeves for me but I have very long arms.

My dad loves this shirt. Will be buying him more soon.

This thing is fantastic for a soft, lightweight sleep shirt. My husband finally wore him out after several years, and I just got him a replacement.

This shirt is very light and great fitting!

I own multiples of these base layers & wear them daily as my undershirts. Depending on the weather, I wear either short or long sleeves & various thickness grade. Smartwool makes the best & most comfortable base layers I've found.

It seems to me that this is the perfect base layer. I have been using it on windy, chilly morning here on Cape Cod and love it. Comfortable, effective. ....What more could one want?

Light weight, comfortable. were alone casually but mostly under polo shirts etc for golf in the cooler and colder weather

Very light and breathable!

This shirt is my go to as the weather gets cooler and a good base layer in colder months. I can't find anything as durable, light weight with the cut and fit as good as this. I bought one last fall and another a few weeks ago.

Already purchased a back-up! Fantastic layering piece, especially for the upcoming Fall hiking season. My new Go-To!

Great lite weight to keep the sun off without slathering on the sunscreen but actually keeps me cooler in the hot sun than i would be otherwise because of the loose fit. But also add warmth if I have another layer or two on top.

Perfect weight for layering or just to wear on a semi cool day. I also love it when going on a run when cold outside

Nice shirt with offset seams. Price was fair for the quality. I have been buying Smartwool products since the late 70's, and have never been let down.

I use this shirt for everyday use and as a base layer for running. The shirt is made with high quality fabric and it fits perfectly.

Used in active hiking UP hills. Base layer. Cant wait for the summer and experiment as a single sunblock layer

Super breathable and dries quick! The long sleeves are great for winter runs or snuggling up by the fire.

Nice shirt. Light weight. It is a bit larger than my other medium sized long sleeved SmartWool shirts.

The shirts are very comfortable