Minus33 Merino Wool Clothing Woolverino Men's Micro Wool 1/4 Zip

100% Merino Wool
Allagash Men's 1/4 Zip


Regular price $74.99 Sale price $39.99 Save $35.00
Shipping calculated at checkout.


The best of both worlds collide in the Allagash Lightweight 1/4 Zip with the ability to zip up when cold and unzip when hot. Still encompassing all of the typical Merino Wool attributes, this top provides unparalleled functionality for any activity. Use it to fend off black flies with the mock neck or as a base layer on your next hike.

Our Allagash Lightweight 1/4 Zip is being converted to Woolverino Core Spun Technology! View the new version here. There is a limited supply of our Allagash Lightweight 1/4 Zip remaining in 100% Merino Wool, 170 gsm, 17.5 micron wool. 

  • Fiber Content: 100% Merino Wool
  • Knit: 170 g/m2 Micro Weight Jersey Knit
  • Microns: 17.5 Micron Fibers
  • UPF Rating: 25
  • Total Easy Care: Machine Wash and Dry
  • Wool Source: Australia
  • Imported.
    • Neckline: 1/4 Zip Mock Neck
    • Tagless Label: No Itchy Neck Tags
    • Zipper: YKK Semi-Auto Locking Zipper Pull
    • Zipper Garage: Keeps fabric between the zipper and your skin
    • Light and Packable
    • Flat Lock Seams: Prevents Chafing
    • Layer Type: Base Layer
    • Fit Type: Regular - Standard fit with a little bit of room to breathe, but not too baggy
    • Runs True to Size 
    • Weight: Size Large = 8.8 oz. (249 grams)
    • Style #: 744
      • Ideal Seasons: Spring, Summer, Fall, Winter
      • Activities: Everyday Wear, Hiking, Camping, Biking, Running, Fishing, Hunting, Snowsports
      • Temperature Recommendations: 30°F and up while active, 60°F and up while inactive - Learn More

        Washing and Drying Instructions - Learn More

        • Turn Inside Out
        • Machine Wash Cold: Gentle cycle with like colors
        • Detergent: Mild or wool-specific
        • Tumble Dry: Low heat
        • Storage: Place in an airtight container when not in use for long periods of time
        • Do NOT Use: Fabric softener or bleach!
        Product Story


        Woolverino's Core Spun Technology brings you a merino garment that is durable, athletically fitted and high-performing. Warm when you need it. Cool when you don't. Nylon inner core offers strength, elasticity, resiliency, and durability. Merino Wool outer sheath provides insulation, moisture-wicking, and UV protection.

        Merino Wool

        Merino Wool is no longer reserved for Winter. Minus33's Lightweight clothing is designed to be worn year round as a base layer or as a solo piece in the spring and summer.

        Lightweight Details

        Whether you're hiking the mountains in spring or rock climbing in summer, our Lightweight product should never leave your back. Our Lightweight items are always the first layer on and the last layer off.

        170 g/m2

        Jersey Knit

        17.5 Micron

        100% Merino Wool
        UPF Rating 25

        Compare Weights


        Activities: Hiking, Camping, Lifestyle, Running, Biking.

        Seasons: Spring, Summer, Fall, Winter.

        High Activity Temperatures: 30°F to 60°F

        Low Activity Temperatures: 60°F and up

        Learn About Layering

        Why Merino Wool?

        Moisture Wicking

        Minus33 Merino Wool regulates the amount of moisture on your skin by absorbing any moisture or sweat on your body. Then, the absorbed moisture evaporates out of the fabric into the atmosphere.


        Merino Wool fibers naturally reject any bacteria in moisture or sweat as it is wicked away, so foot fungus and smelly odor will not be a problem while wearing our products.

        Insulates When Wet

        Wool will absorb up to 30% of its weight in moisture without feeling wet or clammy. If you do get wet, wool will insulate you better than cotton or polyester materials.

        Fire Resistant

        Merino Wool insulates against high temperatures and does not readily catch fire. If it does, it self-extinguishes. When Merino burns, it doesn’t melt and stick to the skin like synthetic fabrics do.

        UV Protection

        Don’t worry about sunburn on a sunny day summiting a peak. Lightweight layers have a UPF rating of 25. Midweight and Expedition have a UPF rating of 50+.


        Merino Wool has a low environmental footprint and naturally returns to the elements. Shear a merino sheep in the morning, and in the afternoon they’re happily nibbling their way towards renewing next season’s clip. 



        Learn More

        Customer Reviews

        Based on 1 review
        Eliam Avila
        Love this 1/4 zip baselayer!

        I recently got this because it was on sale and decided to give it a try. The fit it's just right as a base layer and it looks very good on me. The 1/4 zip code gives it a sexy look to it when you unzip it. Also, the material is very warm and cozy. I tested out the other day under medium temperature around 60 degrees and cloudy and it kept me very warm and dry. My mainly use is going to be for running with it during the winter. I will be getting the vest which is the same model as this one. Furthermore, the only cons about this sweater is that the material being wool it picks a lot of dust and particles, so I have keep cleaning it before going out. Overall, a very good product and the company ships pretty fast. I did my order on a Monday and they ship the item the same Monday and I had my sweater/jacket around Thursday or Friday. Very pleased with their returns too they try their best to do returns even after using the product. I like this because the only way to test a product is to use it at least a couple of time. Thank you so much!


        Thank you for the great review! We are happy to hear how well you like your purchase.
        Thank you for choosing MInus33!

        Jeannie T.

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