Castelli Nano Flex 3G Knee Warmers
Note: Castelli size their clothing small. For the best fit, go up one size
- ShowProduct Information The Castelli Nano Flex 3G Knee Warmers are a stalwart of your winter cycling kit – rain repellent, w... read more
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The Castelli Nano Flex 3G Knee Warmers are a stalwart of your winter cycling kit – rain repellent, windproof, warming and luxuriously comfortable, this latest evolution of the Nano Flex technology is Castelli’s best yet.
The Nano Flex 3G fabric used across these knee warmers utilises a combination of newly updated durable water repellent (DWR) treatment and mechanical heat treatment to give previously unheard-of levels of rain protection. Light rain beads off the fabric, keeping you dry when those inevitable rainy spells descend.
On the inside of the Nano Flex 3G fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions.
This latest update to the Nano Flex fabric not only reflects Castelli’s ongoing commitment to offering you the very best garment quality but crucially means more time enjoying yourself on the bike.
The flat-lock stitching and single-seam construction keep the profile of the warmers low and the stretch is optimised for maximal freedom of movement. A dual-sided silicone gripper at the upper end secures the warmers in place. The compact size of the warmers makes them easy to stuff into rear pockets when conditions lighten up.
- Newly updated Nano Flex 3G fabric for exceptional warmth, softness and protection from the rain
- Minimal seam construction for aesthetic versatility and freedom of movement
- Easily packable into a pocket
- Highly breathable
- Optimal temperature range is 12˚C – 20˚C
Occasionally, without notice, manufacturers change product design and/or specifications.
Castelli Nano Flex 3G Knee Warmers Reviews
Customer Reviews (1)
Again another great product from Castelli. Def an improvement over previous versions, which were good but not as good as these. Thank you Castelli, and thank you Tredz for the best price
Again another great product from Castelli. Def an improvement over previous versions, which were good but not as good as these. Thank you Castelli, and thank you Tredz for the best priceClose review
Castelli Size Chart
Castelli Clothing Sizing Guide
Use the Castelli size chart to find the best fit for you.
Note: Castelli size their clothing small. To ensure an optimal fit it is recommended you go up one size, compared to your normal cycle clothing size.
Castelli Men's Sizing
Castelli Women's Sizing
Read our clothing size guide for more information on sizing.
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
Base Layer Guide
Delivery & Guarantee
UK Delivery Information
Please Note: Due to the current circumstances we are experiencing high demand so we may take a little longer than usual to despatch your order. Our Warehouse and Bike Build team are up and running as normal and we are taking active measures to ensure that we are following the government guidance with social distancing and additional health & safety measures have been put in place throughout the business. Please rest assured we will do everything we can to get your order to you as quickly as possible.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.