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    • Baselayers
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    Woman wearing a black, long-sleeve merino base layer shirt, hair tied back, looking to the side.
    Woman in black Merino shirt, text lists warmth, odor prevention, and suitability for winter sports.
    Black long-sleeve merino base layer shirt with high neck and small logo at the bottom.
    Black knit fabric with text on Merino wool; three sheep in a field. "Perfect Gift" icon.
    Woman in black merino shirt with ski gear, smiling on snowy mountain, wearing beanie and sunglasses.
    Woman in navy blue merino base layer shirt with long sleeves and high neckline against a plain backdrop.
    Woman in dark long-sleeve shirt, benefits listed: warmth, odor prevention, fresh, movement, Denmark design.
    Dark blue long-sleeve merino base layer shirt with logo tag on hem.
    Text on fabric texture, 90% Merino wool, 10% polyamide; three sheep, "Perfect Gift" label.
    Woman in navy merino base layer, leaning on a mossy tree in a lush green forest.
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT
    EXTREME MERINO BASELAYER SHIRT

    EXTREME MERINO BASELAYER SHIRT

    Our warmest merino baselayer shirt for women

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

    EU/UK

    XS S M L XL 2XL 3XL
    US/CA 2XS XS S M L XL 2XL
    Chest 80-84 85-89 90-94 95-99 100-105 106-112 113-119
    Below Chest 68-72 73-77 78-82 83-87 88-93 94-99 100-106
    Waist 62-66 67-71 72-76 77-81 82-87 89-95 96-102
    Hip 90-94 95-99 100-104 105-109 110-115 116-122 123-129


    Please note that our size selector reflects EU sizes.

    INCHES

    EU/UK

    XS S M L XL 2XL 3XL
    US/CA 2XS XS S M L XL 2XL
    Chest 31-33 33.5-35 35.5-37  37.5-39 39-41 42-44 44.5-47

    Below Chest

    26.5-28 29-30 31-32 32.5-34 34.5-36.5 37-39 39.5-42
    Waist 24.5-26 26-28 28-30 30-32 32-34 35-37.5 38-40
    Hip 35.5-37 37.5-39 39-41 41-43 43-45 45.5-48 48.5-51


    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 7 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 works equally well layered or worn on its own. Ideal as a thermal base layer for skiing, snowboarding, Nordic skiing, hiking and other outdoor winter activities.

    Key benefits:
    • Heavyweight 250 g/m² merino 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 way without mulesing practices.

    WASH & CARE
    Water temperature should not exceed 30°C (86°F). Wash with similar colors using a wool detergent. Do not bleach, dry clean, or use fabric softener. Do not tumble dry.

    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. Size up if you prefer a looser fit or plan to wear it as a middle layer.

    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.

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    WaterNlife ApS 

    Gramrodevej 13, 7130 Juelsminde, Denmark

    CVR-no. 35145257

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