Customer Reviews Smartwool Classic All-Season Merino Base Layer 1/4 Zip

Extremely comfortable while running in cool weather. It kept me warm while being perfectly breathable.

I love this base layer. It fits great and keeps me warm during yoga and outside on cool walks. it's thin enough to fit under a sweatshirt or sweater. I bought 2 colors and have worn them everyday since it got cool.

This is a great shirt for the shoulder seasons--comfy and breathable. I'll need the heavier classic base layers for the upcoming cold Michigan winter.

This is a light version of the 'classic' layer. I love wearing this both as a layer and as a stand-alone hiking shirt. The fit is perfect and I like how breathable it is.

First base layer purchased feeling it's so warm And light weight didn't want to take it off and wore it for 3 days straight

Perfect base layer for outdoor activities. Fits true to size. Not too thick but war and lightweight.

Very comfy and soft, size M fits true to size. Greate base layer. It does have 18% synthetic, so it's stretchy but still breathable.

I love this top. I had an old ultra lightweight wool top that finally got too "holey," and I've been looking to replace it for a long time. This is the perfect replacement. Soft, light, and the perfect layering piece for home or travel, dressing up or wearing to the gym or hiking. I love this top.

I love, love, love this lightweight, all season top. Soft, great fit, very lightweight for layering or perfect summer evening extra layer.

Prefect weight for summer on its own or layering for the other seasons. Super soft too! Bought the gray, but will be buying the other colors too!

Very nice top that can be worn alone or with something underneath. Fits well, true to size, and the color is beautiful.

Super comfortable and stylish.

Great material! Warm but breathes.

This is my favorite shirt! It's super soft and comfortable.

lightweight and warm

This is my first merino wool top and it won't be my last. It's soft, comfortable and was on sale. Very happy with this product.

Comfy all day-Used while traveling, to layer. Had 3 smartwool layers-short sleeve, 1/4 zip, and front zip hoodie sweater. Worked like a charm to keep warm at 50 degrees and off a layer when warmer, tied around waist. These 3 items are essential for travel

Originally wasn't looking for ab1/4 zip layer option but glad I purchased, and at a reduced price! Comfortable out of the bag and since it is all season, it might be more of a go to in a slightly warmer climate. Nice to have options when traveling.

I love this so much I got one more. It's warm for temps 50 and up. If you hike in 50 to 60 degrees it's perfect.

I bought this to wear for work. Since it's wool I can wear it year round! I love the fit. I think it's flattering and can work for a professional or casual setting

Very comfortable and cute. I have a few colors I like it so much

Perfect under layer for a trip to Alaska hiking and kayaking near glaciers with Uncruise.

Perfect item for a trip that includes varied weather conditions. I sized up one size which was ideal for layering over a shirt or under a jacket or both. Very comfortable. Can dress down, or dress up with a scarf.

Coastal hike that was chilly at the beginning and warm at the end. I was comfortable the entire time! I am 5'4" 135 lbs and the medium was perfect.

Love these - I wear them as shirts on their own because I live in a warm climate. They are comfortable, moisture-wicking, and long lasting. I have both the 1/4 zip and crew neck versions.