Guest author: Astrid Biemann
When most people hear the word "wool," they immediately think of that thick, scratchy knitted sweater that stays buried deep in the closet all summer and only comes out in winter. If that sounds familiar, it's high time you got to know Merino wool – a real natural wonder that can be worn all year round.
Merino keeps your children warm on frosty winter days and comfortably cool and dry in summer. Its fine fibers regulate body temperature, wick away moisture, and ensure your kids feel great in any situation – whether they're running wild, hiking, or just cuddling on the sofa.
Whether it's a soft layer under a winter jacket or a breathable long-sleeve shirt in the summer, Merino is a true all-rounder you can count on all year.
What is Merino thermal underwear for kids?
Our Merino thermal underwear for children is made from ultra-fine Merino wool – a natural fiber that warms when it's cold and cools when it gets hot. It stores heat, wicks sweat to the outside, and is breathable at the same time. Unlike synthetic materials, Merino provides a comfortably dry feeling on the skin – completely without heat build-up, sweating, or chills.
The wool comes from the Merino sheep, whose fibers are especially soft, thin, and elastic. This means: no scratching, no itching – simply super comfortable, even for sensitive children's skin.
Another plus point: Merino wool is naturally antibacterial and odor-neutral. Even after a long day at the playground, it barely smells – often, simply airing it out overnight is enough. What's more, Merino is sustainable, biodegradable, and durable.
Whether it’s a warm base layer under snow gear in winter or an airy shirt in summer: Merino adapts to the body's climate and ensures optimal comfort all year round.
Why Merino is the best choice for active kids
"Put on something warm, it's cold outside!" – Every parent probably knows that sentence. And the annoyed eye-roll that follows when kids insist they don't need a jacket. It’s no surprise: when they're running wild, skating, or kicking a ball, they warm up fast. And that's exactly where Merino shows what it can do.
Merino longsleeves (and Merino thermal leggings on cold days) are super soft, don't scratch at all, and keep the skin pleasantly dry. The fine fibers transport moisture from the inside out while allowing air to circulate. That means: no sweating, no chilling, and no clammy feeling – even during a snack break after a soccer game or while hiking.
On top of that: Merino is surprisingly robust. The clothing moves with every step, retains its shape, and still feels like new even after many washes. It’s simply perfect for little adventurers who don't do things by halves!
Think like an onion: How the layering works for children's clothing
The onion look (layering) is and remains the secret to happy children – whether they are playing in the snow or on a spring hike. With multiple layers, they can easily adjust when it gets too warm or too cold.
Base layer - right on the skin
This is where Merino shines: thermal underwear, longsleeves, or leggings are soft and snug without bothering or restricting. They keep kids warm, wick away sweat, and ensure a dry feeling on the skin – even during the wildest play.
Insulation layer - storing warmth
Fleece jackets and fleece pants, for example, are suitable here. They provide pleasant warmth and, most importantly, store body heat. When buying, pay attention to sustainable, breathable materials like our PrimaLoft® Bio™. This ensures that no microplastics are released into the environment.
Weather protection - against wind and rain
On wet and cold days, clothing that is waterproof and windproof yet still allows your child’s skin to breathe is important. Our jackets, for example, are perfect for this as the outer layer, completing your child’s layering system.
With these three layers, your child is prepared for any weather. Depending on the weather, they can add or remove a layer.
Tip: The clothing should never be too tight. A little air needs to remain between the layers. This way, warmth can be stored, and the temperature stays consistently comfortable.
Well-dressed all year round with Merino
Huge Merino love! For us, there's no better material to give our little explorers a great feeling all day long – no matter which adventure they're setting off on!
