Basket
Base Layer WINTER PERF THERMO HIGH COLLAR BLACK
Warm, Lightweight, and Moisture-Wicking
This base layer, meticulously crafted in Italy, is designed as the ideal technical first layer to protect your torso during your autumn and winter rides, down to 0°C. Its high collar finish optimizes neck protection.
To combine thermal insulation, optimal moisture management, and lightness without compromising comfort, we have chosen the technical fiber MERYL NEXTEN®. More effective than cotton against moisture, as warm as wool but significantly lighter, it perfectly meets the demands of cyclists seeking efficiency and comfort.
THERMAL FIBER MERYL NEXTEN®
Hollow structure, combining lightness, insulation, and breathability
Moisture wicking 25% faster than cotton
Thermal performance = that of wool
SECOND SKIN EFFECT
Fabric combining compression fit and absolute comfort
Feeling of softness and lightness
Only 95g in size S/M
HIGH COLLAR
Enhanced protection for the neck, a highly wind-exposed area
Reduces heat loss (compared to a standard collar)
ALL DISCIPLINES
Down to 0°C
Wear with a thermal jacket or a long-sleeved jersey + a thermal vest
75% MERYL NEXTEN®.
15% polyester.
10% elastane.
In machine at 30°C, delicate cycle.
No fabric softener. No tumble drying. No ironing.
OUR RECOMMENDATION: place the base layer in a mesh bag to avoid any snags.
Design: France
Weaving/Knitting: Italy
Manufacturing: Serbia
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 108 in your language
-
Andrew D. 19/10/2026 Age: 55-64 Level: Amateur Convenient: RoadFeedback on recent purchase
Snug fit, warm and extremely comfortable. Great value for money
-
Gary M. 14/03/2026 Age: 65+ Level: Advanced Convenient: Gravel, RoadDoes what it says
Great thermo and keeps you warm. Only used it twice in around 5°c and was perfect. Looks very small when you unpack it but it's very stretchy and fits perfectly.
-
Tom B. 13/03/2026 Age: 65+ Level: Advanced Convenient: RoadExcellent base layer
This base layer is by far my favourite because it is so light and thin, but yet has an amazing ability to keep me warm on cold days. It hugs your skin but very comfortably. On days when we start out at 3 or 4 degrees and it may get up to 10 or 11 degrees during the ride, it keeps you warm but doesn’t make you too warm as the temperature rises. It also wicks sweat nicely. I now have 3 different base layer jerseys made of the same material, they are so good.
-
Ivan D. 11/03/2026 Age: 65+ Level: Advanced Convenient: RoadCold winter rides no more
Great winter under layer. I bought my first one last November and was so impressed that I had to get a second as it’s that good.
-
Mihail C. 07/10/2025 Age: 35-44 Level: Advanced Convenient: RoadVery good
I definitely recommend. I have wool underwear and this one, with they material it's very nice on my body, material very thin and strong.
-
Chek Heng T. 16/06/2025 Age: 45-54 Level: AdvancedThermal base
Warm
-
Lee B. 16/02/2025 Age: 55-64 Level: AdvancedVery small
Il est très beau, mais il est extrêmement petit. Ma femme mesure 1,80 m et 110 kg et c'était trop petit pour elle. Il est également accompagné d'un avertissement indiquant qu'il faut faire très attention en l'enfilant pour ne pas endommager le tissu.
Hello and thank you for your review. Please feel free to request a product exchange. Kind regards.
-
Ian M. 13/02/2025 Age: 65+ Level: AdvancedExcellent product for riding in cold weather
Great fit very warm does a great job when riding in very cold weather
-
Brad R. 10/02/2025 Age: 55-64 Level: ExpertGreat underlayer
Form fitting and warm perfect for on the bike
-
Greg T. 08/02/2025 Age: 55-64 Level: AdvancedGood product at an excellent price
love your products and love your prices even better.
-
Paul W. 31/01/2025 Age: 55-64 Level: AdvancedIts a tight fit
Il s'agit d'une couche de base, pas d'une chemise que l'on porterait seule ; elle a un seul but, être cette couche étanche qui retient la chaleur. Je dis cela parce que la première chose que j'ai pensé en ouvrant le paquet était qu'il n'y avait aucune chance que cette couche soit adaptée, elle semblait extraordinairement petite, je pensais honnêtement que je ne serais pas capable de l'enfiler et encore moins de la porter. Mais j'avais tort. Oui, c'est très ajusté et serré ; c'est à peine si la peau est serrée, mais la matière bouge avec vous et semble étonnamment naturelle. Je pouvais également sentir immédiatement la chaleur qu'il emprisonnait, et ce de manière positive. En raison de l'étanchéité et du tissu, je dirais qu'il est un peu plus délicat que d'autres couches de base que j'ai, mais le prix valait la peine d'être essayé. Pour référence, je mesure 1,80 m et je pèse 1,75 kg ; en utilisant le tableau des tailles, j'ai commandé un L/XL et il me convient. Sachant ce que je sais, j'aurais peut-être pris une taille au-dessus, mais, encore une fois, il me va comme prévu. Si vous cherchez une couche de base, c'est un bon choix, mais sachez que vous serez surpris par la taille.
-
Ralf W. 31/12/2024 Age: 55-64 Level: ExpertPerfect base layer at temperatures below 10 degrees celsius
Perfect fit and keeps you warm with good moisture transport
-
Andrew D. 22/12/2024 Age: 65+ Level: AdvancedGreat temperature regulation
These are great. Super snug fit. Arms are plenty long to account for in the chcling reach position.
Never got too hot, certainly didn’t get cold.
Excellent product, great value -
Gary B. 19/12/2024 Age: 55-64 Level: AdvancedGood base layer
Very good fit for me. I am 1.95m tall and good length on torso and the arms.
Very warm in cold British conditions and very comfortable. -
Will M. 14/12/2024 Age: 55-64 Level: ExpertGreat base
My go-to now for really cold weather. This has the high collar, so better for low 30s and below. Handles sweat well.
-
Aidan S. 04/12/2024 Age: 55-64 Level: AdvancedThermo evo winter base layer
The quality of this base layer is excellent and it wicks sweat quite well. Down to approx 8C, this base layer with a winter jacket is perfect and for 3-5C,add a winter jersey as well. In terms of sizing - I'm 177cm tall, waist 81cm and 72kg and L/XL size is perfect. Make sure you check the size guide, however.
Overall, I'm very pleased and pricing (winter sale) was perfect.
The order process and delivery was excellent ... although for UK based customers, be careful of values (to avoid import duty). -
Ineta N. 24/11/2024 Age: 45-54 Level: BeginnerThermo
super!
-
Filthy M. 17/11/2024 Age: 35-44 Level: BeginnerGreat purchase
Im not a cyclist but I was looking for good base layer for work in the winter time. I trim trees for proper clearance on power/utility lines and this shirt by far is the best base layer shirt I have ever owned!
I got this shirt after Christmas 2021 or 2022 for a great price of $18 and have returned today to shop for another base layer shirt of which i will not wait for another price drop i love the material so much I will pay what they ask as of today. Thank you ekoi for making such a great shirt even for people like me who do not cycle but want great thermal protection why working a job. -
Ogreten M. 08/11/2024 Age: 35-44 Level: ExpertBest!
Amazing product, it makes me feel me warm without being too hot.
-
Sean K. 06/11/2024 Age: 18-24 Level: BeginnerLooks great and feels like even better!
The Under Jersey EKOI Perf THERMO EVO High Collar is truly a game-changer for any cyclist looking to elevate their cold-weather riding experience. From the moment I put it on, I was impressed by the perfect fit. The fabric is incredibly soft yet provides just the right amount of compression, giving a snug, second-skin feel without being restrictive. It’s form-fitting in all the right places, ensuring that the jacket or jersey you wear over it doesn’t ride up or bunch, allowing for complete freedom of movement.
What really sets this piece apart is the high collar design. Not only does it provide extra warmth around the neck, but it also blocks out wind effectively without feeling too bulky. On cold morning rides, it made a huge difference in keeping me warm and comfortable. The Thermo fabric does an excellent job at maintaining body heat while also wicking away moisture, so I stayed dry and never overheated, even during more intense efforts.
The quality of the materials is top-notch — it feels like a premium product that will last season after season. The stitching and finish are impeccable, and it’s clear that EKOI has put thought into both performance and durability.
The moment payday comes around, I’m definitely buying more of these! Whether you're cycling in cool weather or just need that extra layer for a more comfortable ride, the Under Jersey EKOI Perf THERMO EVO High Collar is a must-have. It’s worth every penny for the warmth, comfort, and performance it provides. -
Albert L. 02/11/2024 Age: 65+ Level: AdvancedGreat fit and function
looks and works great under a short sleeve jersey, especially when temps change during the day
-
Andrew S. 02/11/2024 Age: 55-64 Level: AdvancedWarm
Does what you say warm at a 4.30am 3hour ride
-
Ewan K. 29/10/2024 Age: 55-64 Level: AdvancedMr ewan kinghorn
Excellent quality, feel and fit
-
Jesus F. 09/10/2024 Age: 55-64 Level: BeginnerJersey ekoi perf thermo evo high collar black
Quality base layer fits great very comfortable, should keep me warm on winter rides .
-
Andy G. 30/05/2024 Age: 55-64 Level: AdvancedMr andy goss
Really nice shirt good quality great fit
Explore a wide range of cycling gear
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.
1 GIFT VOUCHER IN EVERY PARCEL!*
For every order placed on the site, we automatically add a complimentary gift voucher, randomly awarded:
- Gift vouchers worth €5, €10, €20, €50 and €100!
How does it work? No registration required: simply place your order. All that’s left is to open your parcel and discover your gift voucher.
Shipping information for : Ireland
At home
22,67 €
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.
