IOS T-SHIRT baselayer - BLACK

IOS T-SHIRT Baselayer – the wrinkle-free performance T-shirt for every day
Clean. Comfortable. Always polished.

The IOS T-SHIRT Baselayer was developed for men who are looking for a T-shirt that not only looks good, but also performs in everyday life.

Forget thin cotton shirts that wrinkle quickly or lose their shape. This shirt fits close to the body, remains permanently shape-retaining, and still looks well-groomed even after a long day.

The premium Italian performance fabric combines modal, cotton, and elastane for an exceptionally comfortable feel. The material is soft, breathable, and temperature-regulating – perfect as a layer under a blazer, jacket, or overshirt, but also strong enough to be worn on its own.

Minimalist design meets maximum function – for a smart everyday look without effort.

Key Benefits at a Glance

Performance baselayer
Perfect under a blazer, overshirt, or jacket – clean enough for a solo look

Wrinkle-free & self-smoothing
Creases disappear through body heat – ideal for travel and long days

Shape-retaining
No stretching out, no pilling – stays in top form

Premium performance material
High-quality fabric made from modal, cotton, and elastane

Breathable & temperature-regulating
Comfortable to wear in any weather

Slim fit
Close-to-body cut with a sporty silhouette

Material & Care
46% modal
46% cotton
8% elastane

Made in Europe using premium Italian fabric.

Soft, elastic, and breathable – developed for maximum everyday comfort.

Machine washable at 30°C.
No ironing required: minor wrinkles smooth out through body heat while wearing.

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

Fit & Style
The cut remains true to IOS: slim fit, modern and close-fitting without restriction.

The classic crew neck ensures a minimalist look and makes the shirt highly versatile.

Sleeve length: short sleeve.

Styling: perfect under blazers, jackets, or overshirts – or as a clean everyday T-shirt.

Model: 175 cm, 75 kg – wearing size M

FAQ – Frequently Asked Questions

How does the IOS T-SHIRT Baselayer fit?
It has a modern slim-fit cut. It fits close to the body but remains flexible and comfortable thanks to elastane.

Does the shirt really not wrinkle?
No. Due to the special material structure, it smooths itself out through body heat while being worn.

Is the shirt only designed as a baselayer?
No – it works both as a layer under a blazer or jacket and as a standalone minimalist T-shirt.

Should I choose my regular IOS size?
Yes – you can choose your usual IOS T-shirt size.

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 exchange online using your order number and email.

Go to returns portal