IOS TURTLE baselayer - NAVY

IOS Shirt – for cycling, office, and business travel

A shirt that adapts to your pace: the functional IOS Shirt combines high-tech comfort with elegant style. Whether you're cycling to work, navigating a hectic office day, or traveling – this shirt stays wrinkle-free and ready to perform at all times.

The innovative Performance Flex Jersey was originally developed for high-performance sports – and now delivers that same performance in a modern business shirt: breathable, quick-drying, and shape-retaining. Even after hours in a suitcase, it looks fresh – no ironing needed. Any remaining creases disappear within minutes thanks to your body heat.

Italian fabric made in Europe – quality you can feel.

Key Benefits at a Glance

• Performance jersey derived from high-performance sports

• No wrinkles, no ironing – ideal for a hassle-free everyday life

• Breathable & moisture-regulating

• No pilling, no odors – even after long days

• Easy care and quick-drying

• Stylish cutaway collar

or Kent collar with concealed button placket (IOS SHIRT wedding)

or modern stand-up collar (IOS SHIRT stand up)

Material & Care
The shirt is made of 73% polyamide and 27% elastane. Machine washable at 30°C on a gentle cycle. No ironing required: simply hang it up damp and it will smooth itself out – any remaining creases disappear within minutes of wearing due to body heat. For optimal longevity, we recommend avoiding bleach and high spin cycles.

Fit & Style
Modern slim fit – tailored yet comfortable. The regular length allows it to be worn tucked in or untucked. Long-sleeve design with cutaway collar;

or with Kent collar and concealed button placket (IOS SHIRT wedding);

or with modern stand-up collar (IOS SHIRT stand up).

Our model is 175 cm tall and wears size M.

FAQ

Is the shirt suitable for longer trips?
Yes – it remains wrinkle-free and ready to wear even after hours in a suitcase.

How does the shirt regulate temperature and moisture?
The fabric is breathable, quick-drying, and prevents odors – ideal for activity or changing temperatures.

What’s the best way to care for the shirt?
Machine wash at 30°C. No ironing needed – just hang and wear.

IOS TURTLE Baselayer – Slim fit shirt with wrinkle-free performance

Whether in the office, at dinner, or on the go – the IOS TURTLE Baselayer is the perfect layer for men who want comfort and style without compromise.

No more wrinkled shirts or shapeless basics: this smart long-sleeve essential fits close to the body, keeps its shape, and always looks sharp – without any effort.

Thanks to premium Italian fabric and a modern cut, the shirt combines minimalist aesthetics with maximum functionality. It feels lightweight, soft on the skin, and always looks polished – whether worn under a blazer or on its own.

Key Benefits at a Glance

Modern slim fit: Close-to-body fit with a defined silhouette

Wrinkle-free & self-smoothing – ideal for travel or long days

Premium material blend of modal, cotton & elastane

No pilling, no stretching out – shape-retaining even after many washes

Temperature-regulating & breathable – comfortable in any condition

Versatile styling – wearable solo or under a blazer, hoodie, or jacket

Material & Care
46% modal, 46% cotton, 8% elastane. Made in Europe using Italian fabric.

Machine washable at 30°C, air dry, wrinkle-free through body heat.

No shrinking, no stretching out – developed for intensive use.

Fit & Style
Fit: Slim fit – close to the body with high comfort

Collar: Turtle neck – elegant and clean

Length: Regular – can be tucked in or worn loose

Sleeves: Long sleeves – extra slim cut for a sharp look

Model info: 175 cm, 75 kg, wearing size M

FAQ

How does the IOS TURTLE Baselayer fit?
Modern slim fit – close-fitting but flexible. If you have a broader build, consider choosing one size up.

Does the shirt really not wrinkle?
No – thanks to the innovative fabric composition, it smooths itself out while wearing through body heat.

Is the baselayer suitable for business wear?
Yes – it looks stylish and polished both on its own and under a blazer.

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:

• Standard parcel 0–5 kg = €12.90
• Standard parcel 5.01–10 kg = €13.90
• Standard parcel 10.01–15 kg = €14.90
• Standard parcel 15.01–31.5 kg = €18.90

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:

• PayPal
• Apple Pay
• Credit card (Visa, Mastercard, American Express)
• Klarna (Pay later / Installments)
• iDEAL
• Bancontact
• BLIK

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.

Go to returns portal