Skip to content

Free Shipping on all orders above 95 EUR

Free Shipping on all orders above 95 EUR

Login
Search
0
DANISH ENDURANCE
    • NEW ARRIVALS
      • BEST SELLERS
      • GIFTS FOR HIM
      • PACK DISCOUNTS
      • THE SPRING ESSENTIALS
    • BY COLLECTION
      • Running
      • Hiking
      • Cycling
      • Casual
      • Skiing
    • SOCKS
      • Running Socks
      • Hiking Socks
      • Compression Socks
      • Cycling Socks
      • Dress Socks
      • Ski Socks
    • UNDERWEAR
      • Boxers
      • Briefs
      • Compression Pants
      • Thermal Underwear
    • CLOTHING
      • Baselayers
      • T-shirts & Tops
      • Pants & Shorts
      • Jackets
      • Accessories
    • NEW ARRIVALS
    • NEW ARRIVALS
      • BEST SELLERS
      • GIFTS FOR HER
      • PACK DISCOUNTS
      • THE SPRING ESSENTIALS
    • BY COLLECTION
      • Running
      • Hiking
      • Cycling
      • Casual
      • Skiing
    • SOCKS
      • Running Socks
      • Hiking Socks
      • Compression Socks
      • Cycling Socks
      • Dress Socks
      • Ski Socks
    • UNDERWEAR
      • Bras & Tops
      • Bottoms
      • Thermal Underwear
    • CLOTHING
      • Baselayers
      • T-shirts & Tops
      • Pants
      • Jackets
      • Accessories
    • NEW ARRIVALS
    • headwear
    • Socks
    • All products
    • HIKING
    • RUNNING
    • INDOOR
    • CYCLING
    • CASUAL
    • NEW ARRIVALS
      • BEST SELLERS
      • THE SPRING ESSENTIALS
    • BY COLLECTION
      • Running Socks
      • Hiking Socks
      • Cycling Socks
      • Compression Socks
      • Dress Socks
      • Kids Socks
      • Ski Socks
    • BY MATERIAL
      • Bamboo Socks
      • Cotton Socks
      • Merino Wool Socks
    • NEW ARRIVALS
    • BEST SELLERS
    • ABOUT US
    • SUSTAINABILITY
    • FOREST PROJECT
    • COLLABORATIONS
    • OUR BLOG
Search Login
0
Cart 0
Cart

Your cart is currently empty.

Not sure where to start?
Try these collections:

  • All Products
  • All Socks
  • Base Layers
  • Best sellers
  • Cycling
  • Hiking
  • Indoor Training
  • Running
Spend €95,00 more to reach free shipping!
    Order special instructions
    Calculate shipping rates
    Subtotal
    €0,00 EUR
    Recently viewed
    Search
    • Baselayers
    • Running Socks
    • Hiking Socks
    • Beanies
    • Merino
    • Compression Socks
    • Shorts
    Man wearing a black long-sleeve merino base layer shirt, text "EXTREME" on the left sleeve.
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    MEN'S EXTREME MERINO BASE LAYER SHIRT - DANISH ENDURANCE
    Man in black base layer shirt with features: warmth, odor prevention, freedom of movement.
    Black long-sleeve merino base layer shirt with high collar, logo on chest, and text on the sleeve.
    Black fabric with text on Merino wool composition; three sheep in a field below, "Perfect Gift" icon.
    Man in black merino shirt holding skis, snowy mountains in background.
    Man wearing grey Merino base layer shirt, long sleeves, "EXTREME" text on shoulder, smiling.
    Man in gray merino shirt, benefits listed: warmth, odor prevention, all-day dryness, movement, sports.
    Dark gray long-sleeve merino wool shirt with high neck, featuring small logos on chest and sleeve.
    Text on merino wool composition; three sheep in a field, labeled "Perfect Gift."
    MEN'S EXTREME MERINO BASE LAYER SHIRT - DANISH ENDURANCE
    EXTREME MERINO BASELAYER SHIRT

    EXTREME MERINO BASELAYER SHIRT

    Our warmest merino baselayer shirt for men

    €79,95
    Tax included.
    Color
    Color: Black
    Size
    Size: S
    Size chart
    Size chart
    CM

    EU/UK

    S M L XL 2XL 3XL 4XL
    US/CA XS S M L XL 2XL 3XL
    Chest 91-95 96-101 102-107 108-113 114-120 121-127 128-135

    Waist

    79-83 84-89 90-95 96-101 102-108 109-115 116-123
    Hip 92-96 97-102 103-108 109-114 115-121 122-128 129-136


    Please note that our size selector reflects EU sizes.

    INCHES

    EU/UK

    S M L XL 2XL 3XL 4XL
    US/CA XS S M L XL 2XL 3XL
    Chest 36-37.5 38-40 40-42 42.5-44.5 45-47 47.5-50 50.5-53

    Waist

    31-32.5 33-35

    35.5-37.5

    38-40 40-42.5 43-45 45.5-48.5
    Hip 36-38 38-40 40.5-42.5  43-45 45-47.5 48-50 51-53.5


    Please note that our size selector reflects EU sizes.

    Measurement guide

    Find your perfect fit by measuring yourself before ordering.

    1. Chest/Bust: Measure around your chest at the fullest point of your bust, holding the tape firm and level.

    2. Waist: Measure around your natural waistline.

    3. Hips: Measure around the fullest part of the lower hip with feet together.

    Please note that our size selector reflects EU sizes.

    Pack-Size
    Pack-Size: 1-Pack
    Hurry, only 2 items left in stock!

    Free delivery to EU countries on orders over 95€. Delivery in 1–4 business days.

    Description
    Reliable Warmth When the Temperature Drops

    Stay warm when winter conditions push the limits. The Extreme Merino Baselayer Shirt is designed for very cold weather, combining a heavyweight 250 g/m² blend of Merino wool and polyamide to deliver reliable insulation and balanced temperature control. Naturally moisture-wicking Merino wool helps keep sweat away from the skin, so you stay dry and comfortable during long days outdoors.

    Built for active use, this long-sleeve baselayer features flat seams and a tag-free construction for a smooth feel against the skin and easy layering. Ideal as a thermal base layer for skiing, snowboarding, Nordic skiing, hiking and other outdoor winter activities.

    Key benefits:
    • Heavyweight 250 g/m² merino wool and polyamide blend for warmth, durability and everyday wear
    • Moisture-wicking and temperature-regulating to keep you dry and comfortable
    • Flat seams and tag-free design for irritation-free comfort throughout the day
    • Perfect thermal base layer for skiing, snowboarding and cold weather activities
    • OEKO-TEX® STANDARD 100 cert. nr. 2024OK167
    Materials & Care

    MATERIALS
    90% Wool (Merino), 10% Polyamide.

    The merino wool is sourced in an animal-friendly manner without mulesing practices.

    WASH & CARE
    Machine wash at max 30°C / 86°F with similar colors using wool detergent. Do not bleach, tumble dry, iron, or dry clean. Merino wool is naturally odor-resistant and self-cleaning, often airing out overnight is enough to refresh the garment.

    Size

    Find your perfect fit by measuring yourself before ordering. Please note that our size selector reflects EU sizes.

    The model is 177 cm / 5'10 tall and wears size EU S / US XS. This product is true to size.

    Pairs well with

    Customer service

    Our quick and responsive support team replies within 24 hours on weekdays.

    Anti-hole guarantee

    We offer a year-long hole-free guarantee on our socks and underwear, ensuring top-quality performance and providing replacements if any holes develop.

    Fast delivery and free shipping

    Most orders arrive within 1-2 business days and shipped free with purchases over 95 EUR.

    Payment options

    Choose from secure options like Credit Cards, PayPal, Apple Pay, Google Pay, and Klarna Pay Later.

    Shop
    • All products
    • Men
    • Women
    • Kids
    • Sports
    • Socks
    • Gift Card
    Customer Service
    • FAQ
    • Care & Repair
    • Privacy Policy
    • Terms & Conditions
    • Cookie Policy
    • Promos & Discounts
    • Contact
    Company
    • About Us
    • Sustainability & CSR
    • Interview with our CEO
    • Careers
    • Our Ambassadors
    • Company Info
    • Reviews
    Address

    WaterNlife ApS 

    Gramrodevej 13, 7130 Juelsminde, Denmark

    CVR-no. 35145257

    Join over 120,000 members and get 10% off your first order, exclusive deals, news about our latest drops, and endurance inspiration

    When you sign up for our newsletter, you confirm that you have read and accepted our privacy policy. You can withdraw your consent at any time by unsubscribing.

    • Facebook
    • LinkedIn
    • Instagram
    • YouTube
    • TikTok
    © 2026 DANISH ENDURANCE All rights reserved. 
    • Return & refund policy
    • Privacy policy
    • Terms of service
    • Contact information
    • English
    • Nederlands
    • Denmark (DKK kr.)
    • Germany (EUR €)
    • United Kingdom (GBP £)
    • United States (USD $)
    • Albania (ALL L)
    • Rest of world (DKK kr.)
    • Australia (DKK kr.)
    • Eurozone (EUR €)
    • Belgium (EUR €)
    • Bulgaria (EUR €)
    • Canada (CAD $)
    • Croatia (EUR €)
    • Cyprus (EUR €)
    • Czechia (EUR €)
    • Estonia (EUR €)
    • Faroe Islands (DKK kr.)
    • Finland (EUR €)
    • France (EUR €)
    • Georgia (DKK kr.)
    • Greece (EUR €)
    • Greenland (DKK kr.)
    • Guernsey (DKK kr.)
    • Hungary (EUR €)
    • Iceland (DKK kr.)
    • Ireland (EUR €)
    • Isle of Man (DKK kr.)
    • Israel (DKK kr.)
    • Italy (EUR €)
    • Japan (USD $)
    • Jersey (DKK kr.)
    • Latvia (EUR €)
    • Lithuania (EUR €)
    • Luxembourg (EUR €)
    • Malta (EUR €)
    • Monaco (EUR €)
    • Netherlands (EUR €)
    • Norway (NOK kr)
    • Poland (EUR €)
    • Portugal (EUR €)
    • Romania (EUR €)
    • Singapore (DKK kr.)
    • Slovakia (EUR €)
    • Slovenia (EUR €)
    • Spain (EUR €)
    • Sweden (SEK kr)
    • Switzerland (CHF CHF)
    • Türkiye (DKK kr.)
    • Denmark (DKK kr.)
    • Germany (EUR €)
    • United Kingdom (GBP £)
    • United States (USD $)
    • Albania (ALL L)
    • Argentina (DKK kr.)
    • Australia (DKK kr.)
    • Austria (EUR €)
    • Belgium (EUR €)
    • Bulgaria (EUR €)
    • Canada (CAD $)
    • Croatia (EUR €)
    • Cyprus (EUR €)
    • Czechia (EUR €)
    • Estonia (EUR €)
    • Faroe Islands (DKK kr.)
    • Finland (EUR €)
    • France (EUR €)
    • Georgia (DKK kr.)
    • Greece (EUR €)
    • Greenland (DKK kr.)
    • Guernsey (DKK kr.)
    • Hungary (EUR €)
    • Iceland (DKK kr.)
    • Ireland (EUR €)
    • Isle of Man (DKK kr.)
    • Israel (DKK kr.)
    • Italy (EUR €)
    • Japan (USD $)
    • Jersey (DKK kr.)
    • Latvia (EUR €)
    • Lithuania (EUR €)
    • Luxembourg (EUR €)
    • Malta (EUR €)
    • Monaco (EUR €)
    • Netherlands (EUR €)
    • Norway (NOK kr)
    • Poland (EUR €)
    • Portugal (EUR €)
    • Romania (EUR €)
    • Singapore (DKK kr.)
    • Slovakia (EUR €)
    • Slovenia (EUR €)
    • Spain (EUR €)
    • Sweden (SEK kr)
    • Switzerland (CHF CHF)
    • Türkiye (DKK kr.)
    • American Express
    • Apple Pay
    • Bancontact
    • Google Pay
    • iDEAL Wero
    • Maestro
    • Mastercard
    • PayPal
    • Shop Pay
    • Union Pay
    • Visa
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.