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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
PERFORMANCE FOUR Black Product Stats
Compression
 
 
 
 
 
 
 
 
 
 
7
Footbed Thickness
 
 
 
 
 
 
 
 
 
 
8
Durability
 
 
 
 
 
 
 
 
 
 
10
Breathability
 
 
 
 
 
 
 
 
 
 
7
Wicking
 
 
 
 
 
 
 
 
 
 
7
Weight
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
33g
Overall experience relative between Swiftwick products.

PERFORMANCE FOUR Black


Black Compression Socks

SKU: 4A010ZZ_

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Customer Ratings & Reviews
No Blisters!
Review by Tim on Aug 05, 2015
I play Ultimate Frisbee and would constantly get blisters on my toes and heels during long tournaments. I was wearing basketball socks, and they were wearing down quickly and would leave my feet super hot and sweaty. A friend gave me a pair of PERFORMANCE FOURs and I haven't gotten blisters since! And for how much I have worn them, they show very little signs of wear and tear.
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Such a difference
Review by Maurice on Feb 17, 2014
I used to go out on my runs using basic cotton socks. But on longer runs, I got burning feet and I'd normally end up with a blister or two. Not with my new Swiftwicks though. I love how they fit me and how they allow me to push further than before.
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Great for long rides in any conditions
  Review by Brittany Warly (Colorado USA) on Dec 03, 2013
The reviewer has last purchased this item on Feb 01, 2015
I absolutely love my Swiftwick PERFORAMANCE socks! I used to struggle with foot cramps and blisters during long rides in the heat, and these socks did the trick!
My feet are able to breathe and long rides have become comfortable. I even wear my Swiftwick PERFORAMANCE socks for long runs because the natural compression of the socks helps keep my feet stronger for the next workouts. If you want to be the best, you must train with the best gear. Swiftwick is a great buy and has really helped catapult my triathlon career!
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Keeps getting better
  Review by Dan Tompkins (Maryland USA) on Nov 29, 2013
I purchased my first pairs of Swiftwicks for cycling last year and just added a couple pairs of the Four to my collection. A great add for extra compression and heat on colder runs. The craftsmanship is exceptional.
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My absolute favorite!
  Review by Steven Underwood (California USA) on Sep 16, 2013
I've been running for years, and I've worn lots of different socks. The PERFORMANCE Four is by far my favorite sock. I have no negative criticisms. The fit and performance could not be better. For every long run, every tempo run, and every race I wear the Swiftwick PERFORMANCE Four sock.
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