Alle IOS Produkte bieten dir maximalen Komfort, moderne Schnitte und besonders hochwertige Qualität.

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Perfekt sitzendes Sakko mit maximalen Komfort
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"Modern slim fit turtleneck with zipper. Finest merino wool. Zero wrinkles."
___________
Does not crease & always keeps its perfect shape
Breathable & odorless - ideal for long days
Modern, body-hugging fit - slim fit with style
Perfect as a cozy baselayer or over a shirt
Chic and comfortable - for the office, dinner and travel
IOS TURTLE Zip Merino – Style meets function
Merino wool is the most innovative natural fiber available – and the IOS TURTLE Zip Merino shows why: it is ultra-light, breathable, wrinkle-free, and adapts perfectly to your lifestyle.
Whether worn on its own, with jeans, or elegantly under a blazer – this sweater impresses with comfort, functionality, and a modern fit.
Key Benefits at a Glance
Wrinkle-free & shape-retaining – self-smoothing through body heat
Breathable, temperature-regulating & odor-neutral
Modern slim-fit silhouette with narrow sleeves & defined chest
100% fine merino wool – soft, durable & naturally elastic
Perfect all-rounder – clean and elegant under blazers, worn over a shirt on colder days, or simply as a refined addition to jeans or chinos
Material & Care
100% merino wool – Italian fabric, made in Europe
Hand wash on a gentle cycle
Air dry & no ironing required (if needed, steam at the lowest setting)
No pilling, no itching, no stretching out
Fit & Style
Fit: Slim fit – close to the body and comfortable
Collar: Stand-up collar with zipper – modern, clean, elegant
Length: Regular
Sleeves: Long sleeves – slim cut for a dynamic silhouette
Model info: 175 cm, 73 kg, wearing size M
FAQ
Is the IOS TURTLE Zip Merino really wrinkle-free?
Yes – it smooths itself out through your body heat and does not require ironing.
How does merino wool feel in everyday wear?
It is breathable, non-itchy, temperature-regulating, and odor-resistant – perfect for work, travel, and leisure.
What are the advantages of the zipper?
The zipper makes this sweater even more versatile: worn open, it is ideal over a shirt, or simply when you prefer more freedom around the neck. At the same time, it remains highly elegant and easy to combine.
SHIPPING COSTS:
At IOS, we offer standard shipping across the European Union.
The shipping provider (DHL or DPD) can be selected individually.
Shipping costs are:
DELIVERY TIME
Parcels are delivered within 1–2 business days.
SHIPPING PARTNERS
Our shipping partners are DHL and DPD.
PAYMENT INFORMATION:
At IOS, we make shopping easy and secure. On our website, we offer the following payment methods:
Exchanges & Returns
Would you like to return an item?
You’ve placed an order with us, but need a different size, don’t like the product, or received a damaged item? No problem!
We make returns easy.
Use the following link to access our returns portal, where you can process your return or free size exchange online using your order number and email.

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Free exchange
Delivery time
1-2 days
Fast returns & exchanges
The natural crimp of the fiber acts like a feather and gives the material high elasticity and resilience. This reduces creasing and maintains the fit even after prolonged wear.
Merino wool can absorb up to 30% of its own weight in moisture without feeling wet. At the same time, it wicks water vapor to the outside and keeps the skin dry.
The innovative natural fiber also ensures that odors do not develop in the first place. This means the sweater stays fresh for longer and requires fewer washes.
The fine merino fibers have a natural crimp that traps air, creating an insulating microclimate. As a result, merino wool has a warming effect when it is cold and a temperature-regulating effect when it is warm. The extra small fiber diameter also makes this wool much finer and softer, so it is not itchy and is comfortable to wear even on sensitive skin.
Alle IOS Produkte bieten dir maximalen Komfort, moderne Schnitte und besonders hochwertige Qualität.

The IOS TURTLE Merino sweaters are high-quality, functional knitted sweaters made from fine merino wool, developed for style-conscious men who want to combine elegance, comfort and everyday practicality.
All models are:
IOS TURTLE merino
A classic turtleneck sweater with a clean, minimalist design. It has an elegant, timeless silhouette and a comfortable slim fit.
Perfect for business, events & stylish looks under a jacket or coat.
IOS TURTLE zip merino
A modern pullover with half-zip / zipper collar. Variable wearability: closed or slightly open. A sporty, elegant look with more flexibility.
Ideal for smart casual, travel & changing temperatures
Yes - absolutely. Thanks to the temperature-regulating merino wool:
-> Warm when cold
-> Cool when warm
-> No heat build-up
Perfect for long days in the office, on the road or when traveling.
The fit of both is slim fit:
Close-fitting but comfortable and therefore ideal for layering under a jacket or coat.
If you are between two sizes or prefer a looser fit, we recommend going up a size.
No. High-quality, fine merino wool is used, which is particularly soft and comfortable to wear next to the skin. It is also particularly suitable for sensitive skin.
Yes, both models are suitable for business:
TURTLE merino: ideal under a jacket for an elegant business look
TURTLE zip merino: perfect for business casual & modern office styles
They replace the classic shirt + sweater with a clean, contemporary look.
Yes, merino wool is naturallycrease-resistant and retains its shape. It is also particularly odorless.
This makes it ideal for travel, suitcases and multi-day wear without any loss of quality.
Thanks to merino wool, the IOS TURTLE pullovers are real year-round pieces:
-> Fall & Winter as a warming layer
-> Spring & cool summer evenings as a light layer
Use the size chart on the product page.
The sweaters fit well thanks to the elastic knit structure, but if you are between two sizes, we recommend the larger of the two due to the slim fit.
You can find the information in our returns portal.
Go to the returns portal
Usually you register the return, pack the goods unworn and follow the steps in the portal. Our process is quick and uncomplicated, but if you still have questions, you can also send our customer service team a short email with your request at info@ios-clothing.com at any time.
Be the first to find out about the latest product innovations and offers.
IOS is an innovative formalwear concept that combines stylish fashion with function and comfort.
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"Modern slim fit turtleneck with zipper. Finest merino wool. Zero wrinkles."
___________
Does not crease & always keeps its perfect shape
Breathable & odorless - ideal for long days
Modern, body-hugging fit - slim fit with style
Perfect as a cozy baselayer or over a shirt
Chic and comfortable - for the office, dinner and travel
IOS TURTLE Zip Merino – Style meets function
Merino wool is the most innovative natural fiber available – and the IOS TURTLE Zip Merino shows why: it is ultra-light, breathable, wrinkle-free, and adapts perfectly to your lifestyle.
Whether worn on its own, with jeans, or elegantly under a blazer – this sweater impresses with comfort, functionality, and a modern fit.
Key Benefits at a Glance
Wrinkle-free & shape-retaining – self-smoothing through body heat
Breathable, temperature-regulating & odor-neutral
Modern slim-fit silhouette with narrow sleeves & defined chest
100% fine merino wool – soft, durable & naturally elastic
Perfect all-rounder – clean and elegant under blazers, worn over a shirt on colder days, or simply as a refined addition to jeans or chinos
Material & Care
100% merino wool – Italian fabric, made in Europe
Hand wash on a gentle cycle
Air dry & no ironing required (if needed, steam at the lowest setting)
No pilling, no itching, no stretching out
Fit & Style
Fit: Slim fit – close to the body and comfortable
Collar: Stand-up collar with zipper – modern, clean, elegant
Length: Regular
Sleeves: Long sleeves – slim cut for a dynamic silhouette
Model info: 175 cm, 73 kg, wearing size M
FAQ
Is the IOS TURTLE Zip Merino really wrinkle-free?
Yes – it smooths itself out through your body heat and does not require ironing.
How does merino wool feel in everyday wear?
It is breathable, non-itchy, temperature-regulating, and odor-resistant – perfect for work, travel, and leisure.
What are the advantages of the zipper?
The zipper makes this sweater even more versatile: worn open, it is ideal over a shirt, or simply when you prefer more freedom around the neck. At the same time, it remains highly elegant and easy to combine.
SHIPPING COSTS:
At IOS, we offer standard shipping across the European Union.
The shipping provider (DHL or DPD) can be selected individually.
Shipping costs are:
DELIVERY TIME
Parcels are delivered within 1–2 business days.
SHIPPING PARTNERS
Our shipping partners are DHL and DPD.
PAYMENT INFORMATION:
At IOS, we make shopping easy and secure. On our website, we offer the following payment methods:
Exchanges & Returns
Would you like to return an item?
You’ve placed an order with us, but need a different size, don’t like the product, or received a damaged item? No problem!
We make returns easy.
Use the following link to access our returns portal, where you can process your return or free size exchange online using your order number and email.


