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Thin Air Performance Socks

: Black

Thin Air Performance Socks - Black / Small is backordered and will ship as soon as it is back in stock.

Made for those who prefer a thinner sock that protects from blisters and keeps feet dry. Our Skin Thin™ top panel helps regulate temperature and circulate air throughout the sock. For the best fit, it is important to use the size chart before ordering.   • Ultra-thin top panel to promote temperature regulation • Woven “lift bars” to circulate air throughout the sock

Targeted Conditions:

  • Blisters
  • Sore/achy feet
  • Hyper-sensitivity
  • Overheating
Skin Thin Design Features:
  • Ultra-thin top panel to promote temperature regulation
  • Woven "lift bars" to circulate air throughout the sock 
  • Allows for natural toe splay
  • Heat release
  • Wear alone or paired with OS1st TA6 Thin AirTM Calf Sleeves

Care Instructions: Wash gentle on cold, tumble dry on low heat. No bleach or fabric softener.

Comes with one (1) pair of socks per package. 

Before ordering, use this size chart for accurate fit. 
Size Average Shoe Size
S US: M 4.5-6.5 US: W 5-7.5 UK: 2.5-5 EU: 35.5-28.5
M US: M 7-10 US: W 8-11 UK: 6-9 EU: 39-43.5
L US: M 10.5-13 US: W 11.5+ UK: 9.5-12.5 EU: 44-48
XL US: M 13.5+ UK: 13+ EU: 49+

Customer Reviews

Based on 59 reviews
Valued Customer
Happy Feet

I originally bought these at a store and then had trouble finding them. I love these socks - from the left/right design to the support they give the arch, my feet are noticeably less tired after a round of golf or a long walk with the dogs.

Valued Customer
It is a comfortable sock

The sock is lightweight and very airy

Brent Hutchins

I thought I’d found the best socks with another brand until I tried these. I’ll never try another sock as there’s no need. These are extremely comfortable and never fall down in your shoe. The absolute perfect sock!

Grace Bloise
My new favorite sock!!

I love this sock...period!! It is thin, supportive, comfortable, allows my feet to breathe and washes very well. This is my favorite sock now for all my 4 mile walks. I have sung OS1st praises to my husband who is a dedicated runner. I'm hooked and will be buying more OS1st socks! GREAT PRODUCT!!

Valued Customer
Comfy, thin, supportive

These socks are so comfortable. Thin but very supportive.