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Sock and Shoe size reference
SizeSMLXL
Men3-5.56-9.510-1212-15
Women5-7.58-1010.5-12.512.5-15
Euro35-3739-4243-4546-48
ASPIRE FOUR Razzle Red Product Stats
Compression
 
 
 
 
 
 
 
 
 
 
8
Footbed Thickness
 
 
 
 
 
 
 
 
 
 
5
Wicking
 
 
 
 
 
 
 
 
 
 
10
Weight
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
43g
Overall experience relative between Swiftwick products.

ASPIRE FOUR Razzle Red


Compression Socks

SKU: 4C100ZZ-S

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Customer Ratings & Reviews
Awesome Company
Review by Ron Greiser on Jan 23, 2016
Swiftwick is one of those companies that is concerned with their products quality, the customer supports professionalism and the desire to have people all around the world to have "HAPPY FEET".

WHAT A GREAT GROUP OF PEOPLE AND SUPERIOR PRODUCTS!
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The most comfortable sock you can get for the price
Review by Josiah Longenecker (Indiana USA) on Sep 01, 2015
Lets put it this way: I have about 4 pairs of these socks that I race and train in. They are comfortable and breathy. I have only one other sock I wear, and it's my U.S. national team socks. But besides that, you will see me in these.
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Happy Feet
  Review by Dana Stryk (Virginia USA) on Aug 04, 2015
I did not realize how much I enjoyed these socks until I failed to do laundry. I went out on a ride wearing socks from a company who also makes cycling kits. My feet felt like they could not breathe and ached after an hour. The next morning, I ordered more ASPIRE FOUR in red.
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SUPER sock for intense racing & training
Review by Joy Brott on Apr 28, 2015
I've been a cyclist for 30+ years & always considered the lowly sock a piece of non-essential gear. I am a female with a narrow foot (size 9 AA in US sizes) and most socks ended up bunching up or falling down over the course of the ride. I also frequently wore through my socks especially when I would ride off-road on the MTB or cross bike.

An old friend recommended that I try Swiftwick after seeing a race photo where I was wearing an old, ugly pair of short cycling socks. Fast-forward to 6 weeks later, I now own a dozen Swiftwick socks!

The ASPIREā„¢ FOUR in Razzle Red is my absolute favorite: the shade of red perfectly complements all of my bikes (which are all red) as well as my racing kit (red and black!). The size Medium is a perfect fit on my foot: I recently tortured a pair in a Leadville Qualifier race and spent 7 hours in the saddle racing in super muddy conditions. Not once did the socks bunch, move or sag: even when I was slogging my way through knee-deep mud in some sections of the course.

Now that I've tried Swiftwick socks, I won't train or race in anything else! :-)
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The Cure I Needed
Review by Manny Rosenkrantz on Apr 08, 2015
I suffered a hip fracture from a crash on the bike and needed surgery to repair the broken bones. Had a problem with swelling in the foot for weeks after the surgery which just would not go away. My doctor recommended compression socks. These socks took the swelling down in just a few days. I now wear them during and after physical therapy and they feel great. An excellent sock!
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