Lewmar 72mm Synchro Block - Single [29927201BK]
SKU: 76809978657

Lewmar 72mm Synchro Block - Single [29927201BK]

$50.39 $55.99
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Description

Lewmar 72mm Synchro Block - Single [29927201BK]72mm Synchro Block Single Lewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling. Using a combination of scientifically optimized block geometry, a Free Spin bearing, and a self aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power from

72mm Synchro Block - Single

Lewmar's Synchro Blocks are engineered for speed, efficiency, and superior handling.  Using a combination of scientifically optimized block geometry, a Free-Spin bearing, and a self-aligning head to reduce friction and increase efficiency by up to 40%, over budget blocks on mainsheet systems. 

Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power from deck to sail and less wear on your rope.

Features:

  • Stainless steel strap for improved strength and longer service life
  • Stiff glass fiber reinforced cheeks to prevent lines from wedging
  • Innovative design with “tool-free” sliding swivel locking mechanism

Technical Specifications:

  • Working Load Limit - 2420lb
  • Weight - 6.69oz
  • Maximum Line Size - .47" (12mm)

*Sold as an Individual

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: 76809978657

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4.5 ★★★★★
Based on 1549 reviews
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Ginni
San Leandro, US
★★★★★ 5
Love these.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
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Reviewed in the United States on July 7, 2024
M
Verified Purchase
Maria White
New York, US
★★★★★ 5
Perfect!
Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
L
Verified Purchase
Lyssetic
Dallas, US
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2019
C
Verified Purchase
Carol
Pawtucket, US
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
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Reviewed in the United States on December 2, 2018
N
Verified Purchase
Nicole
Bozeman, US
★★★★★ 5
Great quality, no holes or fading!
Size: Medium, Color: Black/Assorted
I purchased these socks a couple years ago and love them so much that I just recently purchased them again! They fit perfectly, don't make my feet sweaty, and hit the ankle at the right spot. The material is so good that over years they have not faded and even though I wear the same few pairs every day, they have no signs of thinning or holes! These are the ONLY socks that I buy. I have the black ones as well as the multi-colored ones. I will never buy another brand or style again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2020

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