


Box One Seat ClampBoth Fixed and QR are available now! Helix QR seat clamps are cold forged and CNC machined from 6061 T6 aluminum alloy. A quick release lever makes adjusting your seat height quick and easy. Weighing just 28 grams 1 ounce in the 31. 8 size, it's as lightweight as it is tough. The head of the quick release lever and the face of the clamp are given a proprietary zero frictionin surface treatment that ensures smooth lever action for the life of the clamp
Quick Dispatch:
Your Box One Seat Clamp orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Box One Seat Clamp ships.
Need Help?
Questions about Box One Seat Clamp, sizing, or delivery? We're just an email away.
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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
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4.1 ★★★★★
Based on 2445 reviews
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Product Reviews
★★★★★ 1
Sizes run small; larger sizes not available
I returned the jacket because the size was much smaller than described. I liked the look and feel of the jacket and the material, but b it x was v much smaller in size than a different jacket I bought at c the same c Times in the c same c size from b a a different company. The other b one for me v perfectly. The Coofandy jacket was not a standard size and much much smaller than I had hoped. If they had offered a larger size I would have exchanged it for a size larger. But they don’t, so I returned it and kept the other one that fit like a glove.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2023
★★★★★ 3
SIZING IS REALLY SCREWED UP !!
I KEW THIS WOULD HAPPEN. RECEIVED A JACKET MARKED L BUT DEFINITELY A MED. I'M A 43" CHEST BUT I HEARD IT WAS CUT SMALL BUT I WANTED TO WEAR TURLENECK SWEATERS WITIT . I'VE TRIED TOO MANY. I'M GOING TO KEEP IT AND WEAR IT OPEN. THE JACKET LOOKS TOO GOOD TO RETURN IT.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
★★★★★ 2
Not for me
The item was too small although I went by the size guide. There is also some uneven white stitching on a gray garment
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
★★★★★ 5
Quality blazer
Quality for such a great price. Fit was perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
★★★★★ 5
IT LOOKS AS SHOWN
Size: 36W x 30L, Color: Navy
comfortable and look good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
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