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

Bought this for my DIL & she loves it.

Honestly obsessed with this. It's a replacement for another Merino base layer I've had for nearly 10 years and have to replace because I've worn it threadbare. This one from Smartwool is thicker but still thin enough to layer, and I have worn it for days in a row at this point. Awesome. Perfect. I'm keeping the old one for those warmer days that don't need as much layering, but this one is exactly what I need for the cold snap we're experiencing right now.

This 1/4 zip fits great and is soft and warm.

Best long underwear ever! Will wear it all season.

So comfy, warm, and flattering! I like that it can be worn while exercising or just casually.

So soft, comfortable, true to size. It is on the thin side so I still need extra layers with it for warmth in the cold UK winter. For extra cold climates I would recommend a heavier base layer top.

Better than expected - love the color

I live in Minnesota. These layering items to get through the winter. They keep me warm enough, but they're also not too hot when I'm indoors.

Light, warm, and oh, so comfortable. It's a dream to have one in each color!

Love this! Soft.

It's a great base layer when under 40 degrees and it's a great single layer when over 40 degrees!

Very comfortable and fits great. I love it.

I love smart wool products! It keeps you warm and dry and does not smell when you sweat! I have been slowly replacing my running gear with smart wool. Good quality and lasts long! the base layers tend to run a little short, just wish it was slightly longer. But I still recommend this product!

A perfect weight! Love everything about this. I sized up for a little extra room as it seems to have a slim fit.

I love the all season model for hiking. Great 1st layer

This is my favorite layer when I go out walking in Northern Idaho. It has a zip up collar that protects my neck and as a bonus it does not restrict.

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.