ESSENTIAL INFORMATION
THE FASTEST CALF SLEEVES – RECORD-BREAKING, WATT-SAVING, TRACK & TRI PROVEN
Welcome to the new standard in cycling and triathlon performance: the HUUB 3:Sixteen Aero Calf Sleeve™. Developed and tested at Silverstone Sports Engineering Hub with champions like Dan Bigham, Alex Dowsett, and Joe Skipper for the legendary Sub7/Sub8 challenge, these calf sleeves leverage patented Aero-Bridge technology for a staggering up to 12 watt saving—the highest £/Watt gain in the sport.
Smooth stretch fabric tensioned over ribbed support ridges suspends the surface and disrupts airflow, reducing drag and multiplying the time/energy gain. Designed for full-race use—including triathlons, TTs, and track—the Black/White 3:Sixteen pair gives you the edge the world’s best used to set records.
Key Benefits:
- Up to 12 Watts saved: Verified by world-class engineers and athletes
- Patented Aero-Bridge Technology: Stretch fabric floats over ribbed support for airflow disruption and drag reduction
- Dan Bigham & Sub7/Sub8 Team designed: Silverstone and Derby Velodrome tested
- Precisely patterned for maximum aero savings
- **Wear under wetsuit, through bike and run—tri-legal, non-UCI
- TT & Track proven by record-breaking pros
- S/M 30–40cm, L/XL 40–50cm—measure calf at widest point
- Pack includes 1 left & 1 right sleeve (pair)
- Country of Origin: China
Size Guide
| Size | Calf Circumference (cm) |
|---|---|
| S/M | 30–40 |
| L/XL | 40–50 |
- If you are pregnant or breastfeeding, contact your doctor before taking this product.
- If you are going to undergo a scheduled surgical procedure, stop taking the product 2 weeks in advance and inform your doctor.
Shipping Information
We ship to Ireland, Northern Ireland, the United Kingdom, and all EU countries.
Shipping Costs
- Ireland & Northern Ireland:
Standard tracked shipping from €5
Express from €10
Free Standard Shipping on orders over €50 - United Kingdom:
Tracked delivery from €20 - European Union:
Standard EU delivery from €10
Priority from €20
Shipping costs are calculated at checkout based on destination, parcel weight, and chosen delivery service.
Handling & Dispatch Times
Orders are processed Monday–Friday (excluding public holidays).
- Orders placed before 12:00 (GMT) dispatch same business day
- Orders after 12:00 dispatch next business day
Estimated Delivery Times (after dispatch)
- Ireland & Northern Ireland: 1–3 business days (Standard), 1–2 business days (Express)
- United Kingdom: 2–5 business days
(Customs may extend delivery by 1–2 days.) - European Union: 3–7 business days (Standard), 1–3 business days (Priority)
All orders include full tracking, and tracking information is emailed after dispatch.
Customs & Duties
- No customs charges for Ireland or EU deliveries
- UK orders may be subject to VAT, import duties, or customs fees, payable by the customer
Returns & Right of Withdrawal
You may withdraw from your purchase within 14 days of receiving your order, in line with EU and Irish consumer law.
To start a return or withdrawal, email: info@endurancelab.ie
Return Conditions
Returned items must be:
- Unopened
- Unused and undamaged
- In original packaging
- Complete (including accessories and documentation)
Once you notify us, products must be returned within 14 days.
Return Address:
Briteshopper Limited / Endurance Lab Shop
6 Melita Ashgrove
Kill Avenue, Dun Laoghaire
A96VX46
Ireland
Include a copy of your invoice or order confirmation in the parcel.
Items Not Eligible for Return
For hygiene and safety reasons, the following cannot be returned:
- Opened packages
- Damaged or soiled items
- Products not in original packaging
- Used or partially consumed nutrition products
- Items returned incomplete
Refunds
Once the returned goods are received and inspected, refunds are issued within 14 days to the original payment method.
Return shipping costs are not refunded unless the item is faulty or sent in error.
Damaged, Wrong, or Missing Items
If your order arrives damaged, incorrect, or incomplete, contact info@endurancelab.ie within 48 hours.
If we are at fault, we cover return shipping and provide a replacement at no additional cost.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Save Up To 12 Watts—Aero-Bridge Tech, World Record Proven
