Castelli Nano Flex 3G Knee Warmer
SKU: 77288494821

Castelli Nano Flex 3G Knee Warmer

Sale price$49.99 Regular price$55.54
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Castelli Nano Flex 3G Knee WarmerNano Flex for the ultimate warmer: warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions. Product features Water repellent thermal and breathable Nano Flex fabric Flat lock stitching with single seam Double sided silicone grippers to keep warmers in place Technical Features Insulation: 3 5 Waterproofness: 3 5 Windproofness: 3 5 Breathability: 4 5 Lightness: 4 5 Weight: 89gm Temperature: 8C 20C

Nano Flex for the ultimate warmer: warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions.

Product features

  • Water-repellent thermal and breathable Nano Flex fabric
  • Flat-lock stitching with single seam
  • Double-sided silicone grippers to keep warmers in place

Technical Features

  • Insulation: 3/5
  • Waterproofness: 3/5
  • Windproofness: 3/5
  • Breathability: 4/5
  • Lightness: 4/5
  • Weight: 89gm
  • Temperature: 8°C - 20°C / 46°F - 68°F
  • Fit: Regular

NANO FLEX ALL-CONDITION WARMERS Choose Nano Flex for warmers that are great in dry conditions but also give some extra protection and warmth in wet conditions. We invented the category of water-protective thermal fabrics, and Castelli's proprietary Nano Flex is often imitated but never equalled. No compromises for any conditions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 77288494821

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Melissa Lynne
Alexandria, US
★★★★★ 5
Gorgeous shoes, worth the price, totally comfortable!
Size: 8, Color: Black
These are so comfortable! They fit perfect, the suede is really soft and the foot bed has a lot of cushion. They fit very true to size, I got a size 8,
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Reviewed in the United States on April 4, 2026
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Karey Gray
Houston, US
★★★★★ 5
Terrific sandal for comfort and adding height!
Size: 7, Color: Dark Chestnut
Very comfortable. I have trouble with heel pain and these sandals are terrific! They are well made - good quality. The brown color is exactly as shown. I would recommend.
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Reviewed in the United States on June 8, 2026
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Vanessa Maciel
Belleville, US
★★★★★ 5
great product
Size: 8, Color: Black
love cute and comfy
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Reviewed in the United States on May 12, 2026
E
Verified Purchase
Everything happens for a reason👌
Grantham, US
★★★★★ 5
The quality is excellent 👌
Size: 8, Color: Chestnut Multi
I love it 🥰
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Reviewed in the United States on May 18, 2026
K
Verified Purchase
kenya
Boise, US
★★★★★ 5
The comfiest shoe!
Size: 7, Color: Chestnut Multi
True to size! Comfy! Like pillows!
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Reviewed in the United States on May 13, 2026

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