Thin Air Performance Socks | 3/4 Crew

$1699
Taxes, discounts and shipping calculated at checkout.
Color: Black
Size

For international orders, please visit OS1st International to find a distributor in your country.

Light as Air, Thin and Mighty
Engineered for runners and athletes who demand breathability without sacrificing performance. Thin Air™ Performance Socks feature Skin Thin™ heat release zones and woven lift bars to increase airflow and reduce moisture, keeping your feet cool, dry, and blister-free.

Features & Benefits

Ultra-breathable Skin Thin™ zones - Enhance ventilation and prevent overheating.

Moisture-wicking fabric - Keeps feet dry to reduce blisters and irritation.

Targeted Compression - Supports arch and foot stability for all-day comfort.

Seamless toe design - Eliminates friction and prevents irritation.

Perfect for: Running, training, and all-day wear

Shipping & Guarantee

Free shipping applies on all orders of $49.99 or more (before taxes and after discounts). Please allow 1-2 business days for processing. Standard shipping is $5.95 for orders below $49.99. 

Shipping typically takes between 3-7 business days.

Return and Exchange Policy

Satisfaction with our products is our top priority. If you are not completely satisfied, you may return products within 30 days of receipt. Returns must be unused / lightly used and in original packaging.

  • Return packages must include the original packing slip or a piece of paper containing the original order number.

Care Instructions

Wash gentle on cold. Tumble dry on low heat. No bleach or fabric softener.

thin air performance sock graphic

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The Socks with Purpose Story

Customer Reviews

Based on 17 reviews
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V
Valued Customer
Great for running and daily wear

These socks really surprised me - in the best way! The compression here is subtle and well-placed, making them super comfortable even for longer activities like running. They're thin but built for performance - lightweight, breathable, and true to size. I love that they're designed with a specific left and right foot - it's a small detail, but it makes a big difference in fit and support. Definitely a step above your average athletic socks. A bit of a splurge, but the quality and function justify the price. Highly recommend for runners, cyclists, or anyone active on their feet!

V
Valued Customer
Great Socks for a Broad Range of Workouts

When sock issues started interfering with my workouts, I decided it was time to replace them. This pair is exactly what I needed. They are thinner is parts to aid breathability, and thicker in others to prevent blistering. They have enough compression to keep them in place and provide a touch of support, but not so much that putting them on is a struggle. Even the length is spot on for my needs, completely clearing the top of my shoe.

I am a women's size 8 shoe and chose size small; the fit is perfect.

V
Valued Customer
Quality

Quality socks that fit perfectly. Very thin on top. Excellent for summer. Highly recommend.

V
Valued Customer
Nice tech socks!

Really happy with these new socks! I run/cycle a lot of miles and have always preferred the thinner socks, best with some attention to the tech side of compression and density panels. My feet get really hot while running even on (rare) colder days. These socks definitely have a synthetic feel, and I hope they hold up well. Felt fantastic for first workout! Trying some new socks mainly because when I find a great pair that endures the workouts - they are then discontinued... I'll try a few more runs, then likely order more! XL socks fit perfect for my size 12 feet.

V
Valued Customer
Comfortable and lightweight

Comfortable and lightweight socks. Nice for warm summer weather.

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