Two Half Zips, Two Personalities
Untouched World's men's knitwear lineup includes two half-zip sweaters that look similar at first glance but serve different purposes. The Matatua Half Zip is the original sweater that sparked the brand's legacy — a relaxed-fit piece in a Merino/Ecopossum™ blend with a fisherman's rib stitch. The Estuary Half Zip gained fame after Barack Obama was photographed wearing it, and it offers a regular fit in a lighter Ecopossum™ blend with a contrasting inner collar.
Both sweaters share the signature Untouched World kite zipper pull and are made in New Zealand. But the blend, weight, and intended use differ enough that choosing between them depends on how you plan to wear it.
Key Details at a Glance
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Matatua Half Zip: Made from our Merino/Ecopossum™ blend of 70% ZQ+ certified Merino, 25% Possum, and 5% Mulberry Silk Higher merino content gives the Matatua a denser, warmer feel — ideal for cooler days and a more substantial sweater.
Matatua Half Zip
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Estuary Half Zip: Made from our exclusive Ecopossum™ blend of 50% Merino, 40% Possum and 10% Mulberry Silk Higher possum content makes the Estuary lighter and more pill-resistant, while retaining warmth — suited for layering or milder weather.
Estuary Half Zip
Fit and Feel
The Matatua has a relaxed fit and a fisherman's rib stitch that adds texture and visual weight. It's the kind of sweater you can wear on its own or over a shirt without feeling constrained.
The Estuary has a regular fit and a smoother knit. It's described as super light but still warm, making it a natural mid-layer under a jacket or for days when you don't want a bulky knit.
- Matatua Half Zip: Relaxed fit, fisherman's rib stitch, available in S–XXL. Heavier, more structured feel.
- Estuary Half Zip: Regular fit, contrasting inner collar, available in XS–XXL. Lighter, more streamlined silhouette.
The Blend Trade-off
The Matatua uses 70% merino, which gives it a classic woolly hand and warmth that suits standalone wear in cooler conditions. The higher merino content also means it may require a bit more care to avoid pilling over time.
The Estuary shifts the balance toward possum fibre (40%), which the brand says helps prevent pilling and keeps the sweater looking newer longer. If you want a low-maintenance sweater that travels well and resists wear, the Estuary's blend is a practical advantage.
Both blends include mulberry silk for softness and strength, but the proportions change the overall weight and drape.
Which One Fits Your Wardrobe?
If you want a sweater with a bit of heritage and a more substantial feel — the kind you can throw on for an outdoor adventure or a casual weekend — the Matatua Half Zip is the choice. Its relaxed fit and ribbed texture make it a statement piece that stands up to cooler weather.
If you prefer a lighter, more versatile layer that works under a blazer or as a travel staple, the Estuary Half Zip is the better pick. Its regular fit and pill-resistant blend mean it adapts to more situations with less fuss.
Both are made in New Zealand and share the signature kite zipper pull. Your decision comes down to whether you want a denser heritage knit or a lighter, more modern layer.
