All IOS products offer you maximum comfort, modernity and high quality.

IOS JACKET - NAVY
Perfekt sitzendes Sakko mit maximalen Komfort
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2-3 Tage
Schnelle
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IOS KNITTED T-SHIRT – Finest knit made from a luxurious silk-cotton blend
The IOS KNITTED T-SHIRT is made for men who find a regular T-shirt too casual and a classic shirt too formal or conservative. It is the luxurious alternative to a classic T-shirt and the perfect shirt substitute for modern, elegant looks.
The fine knit made from 70% cotton and 30% silk drapes fluidly, feels light on the skin and has a subtle natural sheen. With tailored trousers, under a blazer or with jeans: elegant, modern and sporty with understated sophistication.
The fine knit falls softly against the body and gives the T-shirt significantly more elegance than classic jersey. At the same time, the athletic slim fit creates a masculine silhouette.
Benefits at a Glance
Fit: Athletic slim fit with defined chest, shoulder and arm areas
Luxury Feel: Exceptionally soft and pleasant feel thanks to the premium cotton-silk blend
Fine Knit: Very fine knitted structure for an elegant and premium surface
Comfort: Cotton provides a naturally comfortable feel, while silk adds extra softness and lightness
Temperature Comfort: The natural fibre blend supports a pleasantly balanced body climate
Natural Drape: The fine knit falls softly against the body without feeling stiff or bulky
Natural Flexibility: The knitted construction provides comfortable freedom of movement without a technical stretch look
Versatility: Ideal as a premium shirt substitute under a blazer, shacket or worn on its own
Care: Easy-care and machine washable at 30°C
Material & Care
Material: 70% cotton, 30% silk = IOS Luxury Cotton Silk.
This premium combination blends the natural comfort and everyday practicality of cotton with the exceptionally soft feel, subtle sheen and elegant drape of silk.
The result is an exceptionally fine knit with a luxurious surface and outstanding wearing comfort.
Machine washable at 30°C.
Not suitable for tumble drying. Allow to air dry after washing.
Fit & Style
The athletic slim fit was developed specifically to enhance masculine proportions.
The chest, shoulders and biceps are defined, while the shirt deliberately offers a little more drape around the stomach and does not fit unnecessarily tight.
The slim, higher-cut sleeves further emphasise the upper arms and create a modern silhouette.
Ideal for men who want the casual feel of a T-shirt with the elevated appearance of an elegant shirt.
The model is 1.78 m tall, weighs 78 kg and wears size M.
FAQ
What makes the IOS KNITTED T-SHIRT different from a regular T-shirt?
Instead of classic jersey, it is made from an exceptionally fine knit consisting of 70% cotton and 30% silk. This gives it a much more elegant appearance, a more refined drape and an exceptionally soft, luxurious feel.
Can I wear the IOS KNITTED T-SHIRT under a blazer?
Yes. That is exactly what it was designed for. The fine knitted structure and elegant surface make it the perfect modern alternative to a shirt.
How does the IOS KNITTED T-SHIRT fit?
Athletic slim fit. The chest, shoulders and arms are cut close to the body, while the shirt offers slightly more drape around the stomach. Choose your usual T-shirt size.
Is the material comfortable in warmer temperatures?
Yes. Cotton and silk are natural fibres and together provide a pleasantly lightweight and balanced wearing experience.
How should I care for the shirt?
Wash at 30°C and allow to air dry afterwards. Do not tumble dry.
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.
Wearing comfort
Modern fit
No ironing
No wear and tear
No sweating
No odor
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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IOS KNITTED T-SHIRT – Finest knit made from a luxurious silk-cotton blend
The IOS KNITTED T-SHIRT is made for men who find a regular T-shirt too casual and a classic shirt too formal or conservative. It is the luxurious alternative to a classic T-shirt and the perfect shirt substitute for modern, elegant looks.
The fine knit made from 70% cotton and 30% silk drapes fluidly, feels light on the skin and has a subtle natural sheen. With tailored trousers, under a blazer or with jeans: elegant, modern and sporty with understated sophistication.
The fine knit falls softly against the body and gives the T-shirt significantly more elegance than classic jersey. At the same time, the athletic slim fit creates a masculine silhouette.
Benefits at a Glance
Fit: Athletic slim fit with defined chest, shoulder and arm areas
Luxury Feel: Exceptionally soft and pleasant feel thanks to the premium cotton-silk blend
Fine Knit: Very fine knitted structure for an elegant and premium surface
Comfort: Cotton provides a naturally comfortable feel, while silk adds extra softness and lightness
Temperature Comfort: The natural fibre blend supports a pleasantly balanced body climate
Natural Drape: The fine knit falls softly against the body without feeling stiff or bulky
Natural Flexibility: The knitted construction provides comfortable freedom of movement without a technical stretch look
Versatility: Ideal as a premium shirt substitute under a blazer, shacket or worn on its own
Care: Easy-care and machine washable at 30°C
Material & Care
Material: 70% cotton, 30% silk = IOS Luxury Cotton Silk.
This premium combination blends the natural comfort and everyday practicality of cotton with the exceptionally soft feel, subtle sheen and elegant drape of silk.
The result is an exceptionally fine knit with a luxurious surface and outstanding wearing comfort.
Machine washable at 30°C.
Not suitable for tumble drying. Allow to air dry after washing.
Fit & Style
The athletic slim fit was developed specifically to enhance masculine proportions.
The chest, shoulders and biceps are defined, while the shirt deliberately offers a little more drape around the stomach and does not fit unnecessarily tight.
The slim, higher-cut sleeves further emphasise the upper arms and create a modern silhouette.
Ideal for men who want the casual feel of a T-shirt with the elevated appearance of an elegant shirt.
The model is 1.78 m tall, weighs 78 kg and wears size M.
FAQ
What makes the IOS KNITTED T-SHIRT different from a regular T-shirt?
Instead of classic jersey, it is made from an exceptionally fine knit consisting of 70% cotton and 30% silk. This gives it a much more elegant appearance, a more refined drape and an exceptionally soft, luxurious feel.
Can I wear the IOS KNITTED T-SHIRT under a blazer?
Yes. That is exactly what it was designed for. The fine knitted structure and elegant surface make it the perfect modern alternative to a shirt.
How does the IOS KNITTED T-SHIRT fit?
Athletic slim fit. The chest, shoulders and arms are cut close to the body, while the shirt offers slightly more drape around the stomach. Choose your usual T-shirt size.
Is the material comfortable in warmer temperatures?
Yes. Cotton and silk are natural fibres and together provide a pleasantly lightweight and balanced wearing experience.
How should I care for the shirt?
Wash at 30°C and allow to air dry afterwards. Do not tumble dry.
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.