Smartwool Men's Merino 250 1/4 Zip Baselayer Top

About This Item

Fit and Design:

  • Slim fit
  • Fit updated to improve functionality while enhancing aesthetics
  • Shoulder panels eliminate top shoulder seams
  • Flatlock seam construction designed to minimize chafing
  • 10'' (25 cm) center front zipper semi-locking slider
  • Go Far. Feel Good.™ Guarantee

Technology:

  • 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
  • Merino Sport 250 fabric helps move moisture, dries quickly, and holds its shape during high-sweat activities in colder weather

Additional Details:

  • Weight: 298g / 10.51oz
  • Machine wash warm gentle cycle
  • Do not iron decorations
  • Do not bleach
  • Tumble dry low
  • Cool iron as needed
  • Do not dry clean
  • Wash with like colors
  • Brand : SmartWool
  • Country of Origin : Imported
  • Fabric : 100% Merino Wool
  • Web ID: 21SWLMMNSMRN25014AOA
GenderMen's
Best UseMultisport
Fabric100% Merino Wool
Shirt TypePartial-zip base layer
Fit TypeSlim fit
NecklineZip neck
Sleeve LengthLong sleeve
Back LengthHip-length

REVIEWS

4.9
98%
Recommended

42 Reviews

Received incentive

Love Smart Wool Brand.

Bought on sale great value. Love the quality of Smart Wool products.

Verified Purchase

Stylish & Functional Wool Base Layer.

Only recently became aware of Smartwool, saw this quarter zip, and love it! Fits well. Looks good. Very useful base wool layer. Now a fan of Smarwool.

Verified Purchase

Required Winter Staple

Smartwool has mastered the 1/4 zip merino base layer. I've owned these for years and they never disappoint. Once the temp is below 20 degrees, I have one on every day. Perfect weight, perfect fit.

Verified Purchase

High Level Product

I recently had the opportunity to try out the Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip, and I must say, it quickly became one of my favorite pieces of outdoor clothing. First and foremost, the quality of the merino wool used in this base layer is exceptional. The fabric is incredibly soft and comfortable against the skin, and it provides excellent insulation and warmth. I was impressed by how well it regulated my body temperature, keeping me warm in colder conditions and preventing overheating during more active pursuits. The natural moisture-wicking properties of merino wool also kept me dry and comfortable throughout my outdoor activities. The 1/4 zip design of this base layer is a great feature. It allows for easy ventilation and temperature control, especially during strenuous activities when you need to quickly release excess heat. The zipper is smooth and durable, and the collar provides added protection and warmth for the neck area. I found the fit of this base layer to be spot on. The slim yet stretchy design contours to the body without feeling restrictive, allowing for a full range of motion. The sleeves are the perfect length, and the shirt stays in place even during active movements. The overall construction feels solid, with flatlock seams that minimize chafing and enhance comfort. One of the standout features of this base layer is its odor resistance. Merino wool naturally has antimicrobial properties, meaning it inhibits the growth of odor-causing bacteria. Even after multiple days of use, the shirt remained fresh and odor-free, making it an excellent choice for multi-day hikes or backpacking trips when laundry facilities may be limited. Durability-wise, the Smartwool Men's Classic Thermal Merino Base Layer is impressive. The merino wool is robust and resistant to pilling, ensuring that the shirt maintains its quality and appearance even after repeated use and washes. I appreciated that it retained its shape and didn't stretch out over time. In terms of improvements, I would have liked to see a small zippered pocket or a media port for storing small essentials or routing headphone cables. This would have added convenience for those who like to listen to music or carry small items while on the move. Overall, the Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip exceeded my expectations in terms of comfort, performance, and durability. It is a versatile and reliable piece of outdoor clothing that provides excellent insulation, temperature regulation, and odor resistance. Whether you're hiking, skiing, or engaging in any cold-weather activity, this base layer is a worthy investment that will keep you warm, dry, and comfortable throughout your adventures.

Verified Purchase

Smart Wool Merino The Lasts!

Smart Wool has natural colors. For those who sweat in all physical activities, the merino wool carries it’s own wool fragrance the longest time between washings and the fabric keeps it’s shape. All great qualities for products to be used and last!

Verified Purchase

Hands Down Best Merino Base Layers

I’ve worn them all. But smartwool has it figured out. They are the best in the business for warmer base layers. I literally wear the crew neck with a 1/4 zip under my uniform. It provides supreme warmth, breathable base, and keeps you dry. And these are flat out durable.

Verified Purchase

Fantastic

Comfortable and quality shirt. It is light weight, packs easy, and was everything that I was hoping for. This is perfect for backpacking, cycling, or any other outdoor adventure.

Verified Purchase

Great Base Layer

I wore this several days on a recent week long ice climbing trip. It felt great next to the skin and dried quicker than I expected. I will be buying more in the future. I also purchased some for my wife and daughters. They all love them too.

Verified Purchase

Love This Base Layer

This 1/4 zip is so comfortable and warm. Great purchase. I wear it mostly when walking the dog in winter, and it keeps me warm underneath by down jacket even when temps get to zero or below.

Verified Purchase

Very Warm And Stylish!

Bought this for myself, as an add on after moving to VT, figuring I’d need a stockpile of quality warm clothing that is both stylish, warm and durable. Solid choice!

Verified Purchase

Perfect Base Layer

I bought this for my son, an avid biker, runner, for Christmas. He wore it the next day. The things he said are reflected below. He bought things from the store in ELansing when in High schoo l.

Verified Purchase

Great Fit

Very comfortable with no itch. I like the warmth in such a lightweight product. Definitely a go to cool Fall days or a layer for colder Winter days.

Verified Purchase

Stylish And Functional

I bought this for our 19 year old son. The two tone (sleeves different color) is super cute and he loves it. We hiked Zion and it kept him very warm without bulk. He said he is going to wear it at college and even for dressier occasions!

Verified Purchase

The Best Base Layer On The Market!

I now have three of these Smart Wool thermal base layer shirts. I wear them all the time during three seasons; almost winter, winter, and still winter.

Verified Purchase

Warm. Stylish.

Everything you'd want in a thermal base layer: warm, stylish, comfortable. You can wear this not only as a base layer, but a casual sweater. Love it.

Read All Reviews (42)