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Base layer EKOI Perf THERMO COLD EXTREME BLACK
Warm, Lightweight, and Moisture-Wicking
This base layer, meticulously crafted in Italy, is more efficient than a standard model: it serves as the ideal technical first layer to shield your torso down to -5°C.
Its innovative fiber combines polyamide, known for its strength and flexibility, with polypropylene, famous for its thermo-regulation, lightness, and almost zero water absorption. The result: moisture is quickly wicked away, keeping you dry and warm, even during intense rides.
More effective than cotton against perspiration and as warm as wool while being much lighter, this base layer provides unmatched comfort and performance.
THERMAL FIBER -5°C
Composition combining lightness, insulation, and breathability
Ultra-fast wicking of moisture
Thermal performance equivalent to wool
SECOND SKIN EFFECT
Fabric combining compression fit and absolute comfort
Feeling of softness and lightness
Only 135g in size S/M
HIGH COLLAR
Enhanced protection for the neck, a very wind-exposed area
Reduces heat loss (compared to a standard collar)
Finishes
Raglan sleeves for superior comfort and great freedom of shoulder movement
Flatlock seams to prevent any potential chafing on the skin
Elasticated jersey hem for an excellent balance of support and comfort
Road, MTB, Gravel
Effective down to 23°F, when paired with a long-sleeve jersey and an Ekoï thermal jacket.
- 54% Polyamide
- 37% Polypropylene
- 9% Elastane
Machine wash at 30°C, gentle cycle.
No fabric softener. No tumble drying. No ironing.
OUR RECOMMENDATION: place the base layer in a mesh bag to avoid any snags during washing.
Design: France
Weaving/Knitting: Italy
Dyeing: Italy
Manufacturing: Italy
Back to the product
| Size | Height |
|---|---|
| S/M | <= 176 cm 69.3 in |
| L/XL | 177-190 cm 69.7-74.8 in |
| XXL | >= 190 cm 74.8 in |
of which 4 in your language
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Kaspars R. 24/01/2026 Age: 35-44 Level: Advanced Convenient: RoadExcelence
The EKOÏ Perf THERMO COLD EXTREME Black base layer really impressed me. It’s incredibly lightweight and thin, yet performs exceptionally well in cold conditions. The material feels soft and comfortable against the skin, offering great insulation without any bulk. During rides it keeps the body warm and dry, making it a perfect first layer for winter cycling. A surprisingly powerful piece for its minimal weight.
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Stavros V. 24/12/2025 Age: 65+ Level: Advanced Convenient: RoadExcellent product
Thin layer material, very warm, tight fit like a second skin
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Timothy M. 23/12/2025 Age: 55-64 Level: Beginner Convenient: Gravel, RoadGear of choice
Quality at a reasonable price. And, a customer service department that stands behind the company and furthers the brand!
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Bill S. 27/11/2025 Age: 65+ Level: Expert Convenient: RoadAmazingly warm!!
I just received my second one of these base layers. It's amazing how something so light and thin keeps me so warm in temperatures above and below freezing. Combined with my Ekoi jacket I rarely need anything else to be warm and comfortable.
What is a pre-order?
This is a purchase for a product that will be available soon, and which allows you to reserve this product.
Simply follow the usual purchasing process: add the product to your cart, enter your shipping and payment information, then confirm your order.
Upon receipt of the products, your order will be prepared as soon as possible and we will keep you informed by e-mail (please also check your spam mails)
What if my order contains products in stock and in pre-order ?
Products in stock and products on pre-order will be shipped all together, when all products are available.
Shipping information for : Worldwide
At home
Our return policy allows you to return your products in new condition (unworn, unwashed), with tags attached and in their original packaging within 30 days.
The return costs are totally free*.*Valid in Austria, Belgium, Canada, Czech Republic, Denmark, France, Germany, Italy, Japan, Luxembourg, Netherlands, Poland, Spain, United Kingdom, United States.
Make your request :
If you comply with the return conditions, just go to your customer account and then click on
My return
- Select the order concerned by the return*
- Check the quantity of the product(s) you wish to return to us.
- Select one of the following options : Credit note, Exchange or Refund.
- Once the return request has been completed you can prepare your pack and send it.
*If the order is no longer available, you do not respect the return conditions (return within 30 days)*
Prepare your parcel :
- Add a copy of you invoice in the pack or write your details
- Return the product(s) with the labels attached and in their original packaging
- Helmets and glasses MUST be returned in a rigid, reinforced cardboard box. Any return in soft packaging will result in the immediate return of the product without exchange or refund. In the event of failure to comply with this instruction, Ekoï declines all responsibility for the condition of the product.
- If you want to return a product on your own within the UK, you can send it to the following address: Brian Smith / Ekoï UK, c/o 86 Elm Grove, Orpington BR6 0AD, UK. If your are based in Europe, you can send it to the following address :
EKOI
146 chemin du drap
83480 PUGET-SUR ARGENS
France
On receipt at our warehouse the pack will be dealt with within 5 working days maxi and the refund or credit made at the same time.
In case of refund, the amount will be sent back by reverse transaction.
In case of instalments, the amount will be deducted from the last payment
Our return conditions allow return of your new products (not worn during training or washed), with the original labels and bags. Customers have to inform us of the return online within 30 days after receipt of the order and have 30 days maxi to return the articles.
Items tried to check the size are not considered like worn. We reserve the right to refuse a return if it is damaged or for hygienic reasons.
In case of refund, the gifts offered with the products must also be returned (mentioned on the invoices,
All customised items cannot be returned. (glasses, prescription glasses, helmets...)
The bags containing the product (s) to be returned must not be stapled (risk of damage of the product
For the return of shoes, the soles must not be marked, either by placing cleats, or by walking on an abrasive surface.
First of all check with your tracking n° if the pack has been delivered to our warehouse or not.
If so, it will be dealt with within 5 working days maximum.
