100% Merino Wool - Midweight · 250 GSM
Camiseta de manga larga con media cremallera de Merino 250 para niños, color Verde Oliva Oscuro
250 GSM is our everyday cold-weather standard — warm enough for winter city days, breathable enough for the trail.
Fabric weight guide
Which merino weight is right for you?
GSM is grams per square metre — how much fabric there is, not a warmth rating. Every weight is the same soft 17.5-micron Australian merino: it wicks sweat before it turns cold, insulates when it is cold and ventilates when it is warm. Lighter fabric breathes and dries faster; heavier fabric holds more heat when you stop moving. Choose by season and by how hard you will be working.
Warm & hot weather · 60°F+ / 15°C+ — and high effort in any season
Best for: summer hiking, running, cycling, hot-climate travel, everyday tees and office wear; the next-to-skin layer under a 250 when you work hard in winter
Pick this if: you want a shirt that stays fresh for days, dries in an hour and keeps you cooler than cotton in the heat — or you simply run hot
Think twice if: you will mostly be standing still in the cold; on its own a lightweight layer has little insulation to offer
Cool to mild · 40–65°F / 5–18°C
Best for: spring and fall as a standalone top, summer evenings, cool-morning hikes and commutes; winter as a base under a mid-layer
Pick this if: you want one merino layer that covers most of the year, or you are unsure between light and mid — this is where most people should start
Think twice if: you run cold and your winter is genuinely cold: go straight to 250
Cold · 20–45°F / −7–7°C — the classic winter base layer
Best for: skiing and snowboarding, winter hiking, cold-weather work, frosty fall mornings; top-and-bottom sets so your legs are not the weak link
Pick this if: you run cold in fall, want the classic winter base layer, or spend active days below freezing under a shell
Think twice if: you overheat easily on hard uphill efforts — a 165 or 190 underneath, 250 over it, is the better system
Deep cold · below 25°F / −4°C — especially when you stop moving
Best for: ice fishing, hunting stands, camp at altitude, winter mornings spent waiting rather than walking, a house that never quite gets warm
Pick this if: warmth matters more than breathability, you are chronically cold, or your winter involves long spells standing still outdoors
Think twice if: you will be working hard — it is too warm for a sweaty climb, which is exactly the point
A base layer works by sitting close to the skin, where it can move moisture — loose is not more comfortable, just slower. Between sizes? Size down for a next-to-skin layer under a shell, size up to wear it on its own or over another layer. Merino stretches with wear and springs back after a wash. Heavier weight is not itchier: itch comes from coarse fibre, and every weight here is the same superfine merino.
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Features & Details
Details:
Knit: 250 g/m2 Midweight.
Layer Type: Base Layer, Mid Layer.
Temperature Recommendations: 30°F to 0°F while active, 30°F to 60°F while inactive.
Fit Type:
Regular - A standard fit that strikes the perfect balance between comfort and a tailored look, allowing for easy movement without feeling too loose.
Recommended Activities:
Everyday Wear, Hiking, Camping, Biking, Running, Fishing, Hunting, Snowsports.
Description
Camiseta de manga larga de merino con media cremallera para niños
Ofrezca a su hijo una comodidad fiable con la camiseta de manga larga de merino con media cremallera para niños, confeccionada por expertos con lana merina 100% superfina de 17,5 micras. Su construcción de lana merina de peso medio de 250 g/m² ofrece una calidez excepcional a la vez que sigue siendo lo suficientemente transpirable para los días activos. El diseño de media cremallera proporciona un cómodo control de la temperatura y una fácil superposición bajo chaquetas o ropa de nieve. La termorregulación natural mantiene la temperatura corporal equilibrada, mientras que las fibras que absorben la humedad ayudan a mantener la sequedad durante todo el día. La lana merina resistente al olor minimiza los olores desagradables, y el tejido increíblemente suave se mantiene cómodo incluso contra la piel sensible.
Ligera, naturalmente elástica, resistente a los rayos UV, antiestática, ecológica e hipoalergénica, es una opción fiable para todas las estaciones.
Materials & Care
Washing and Drying Instructions
- Turn Inside Out
- Machine Wash Cold: Gentle cycle with like colors
- Detergent: Mild or wool-specific
- Lay flat to dry
- Storage: Wash before storage and keep in a dry place, using airtight containers or vacuum-sealed bag to prevent moth.
- Do NOT Use: Fabric softener or bleach!
Guarantee
- 30 Day Satisfaction Guarantee - Return Policy
- 1 Year Warranty
Never Smells
Dry Fast
Wick Moisture
Natural Airflow
Merino.Tech - MIDWEIGHT 100% Merino
ULTRA COMFORT & INCREDIBLY WARM
Adaptable and cozy, our Merino Wool is your reliable companion. Crafted for three-season use, our Midweight functions seamlessly as both a base and mid layer.
NATURE'S WONDER TEXTILE
Thanks to the unique properties of Merino wool fibers, moisture is effectively drawn away from your skin, ensuring optimal comfort and moisture control. The intricate structure of Merino wool securely traps odor molecules, releasing them only during washing. This distinctive feature ensures that Merino wool remains resistant to the unpleasant odors commonly associated with alternative fibers.
Questions people ask about merino
What is merino wool, and what makes it different from regular wool?
Merino wool comes from Merino sheep and is measured in microns — the thickness of a single fibre. Merino.tech uses 17.5 micron Australian merino, which is roughly a third the thickness of the coarse wool most people remember from old jumpers. Finer fibres bend against the skin instead of pressing into it, which is why merino feels soft rather than scratchy while still insulating, breathing and resisting odour naturally.
Is merino wool itchy?
No. Itch is caused by fibre diameter, not by wool itself. Fibres above roughly 22 microns are stiff enough to trigger the prickle response; ours measure 17.5 microns, well under that threshold. Every piece here is 100% Australian merino with no synthetic blend in the body fabric, so there is nothing rough sitting against your skin.
How do I wash merino wool without ruining it?
Turn the garment inside out, machine wash cold on a gentle cycle with like colours, and use a mild or wool-specific detergent. Lay it flat to dry. Never use fabric softener or bleach — softener coats the fibre and destroys the breathability you paid for. Merino resists odour, so you can wear it several times between washes, which is the easiest way to make it last.
What weight should I choose for a base layer set?
250 GSM is the answer for most people — it carries from the first frost through midwinter and works while moving or sitting still. Choose 165 if you run hot or plan high-output activity, and 320 if you are outdoors in deep cold without much movement. A set gives you the matched top and bottom in one weight, which is simpler than mixing.
Does merino wool shrink?
It can, but only under heat and agitation. Hot water and a tumble dryer cause the scales on the fibre to lock together permanently. Cold water, a gentle cycle and flat drying prevent it entirely. Follow that and the garment keeps its shape for years.