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Swiftwick ASPIRE FOUR Trail Running, Cycling Crew Socks, Firm Compression Fit
Swiftwick ASPIRE FOUR Trail Running, Cycling Crew Socks, Firm Compression Fit
  • 1" high
  • 4" wide
  • MADE IN THE USA: Swiftwick socks are made in the USA, an important commitment we make to our customers and local communities. Purchase includes one pair of socks.
  • SIGNATURE OLEFIN FIBER: Made of high-performing, lightweight Olefin fiber that wicks moisture and dries quickly. Abrasion resistant, strong and colorfast. Material composition is 67% nylon, 28% Olefin fiber and 5% spandex.
  • ARCH BAND SUPPORT AND CHANNELED UPPER: The arch maintains shape to deliver lasting support. Thin channeled upper improves breathability.
  • MESH FOOTBED DESIGN: Mesh knit pattern in the footbed designed for optimum breathability.
  • Y-HEEL CONTOUR AND SEAMLESS TOE: Y-shape stitch creates a contoured heel pocket that moves with the foot. Virtually invisible toe seam eliminates friction in the toebox.
Swiftwick socks, made in use, best socks for running, socks cycling

Swiftwick ASPIRE FOUR is engineered with firm compression and a minimum cushion for a responsive feel. Whether you’re Walking, Cycling, Road Running or Trail Running, the firm compression supports every contour of the foot to reduce fatigue. The ASPIRE sock is designed to stay in place regardless of the activity. Crafted from Lightweight Olefin fiber, this running and cycling sock stays cool, wicks moisture and dries quickly to keep you performing at your best. Built in channels in the top of the sock as well as a mesh footbed provide ventilation to increase breath-ability. Purchase includes 1 pair of Swiftwick ASPIRE FOUR socks.

Aspire Four Trail Running and Cycling Crew Sock

Product Features

SIGNATURE OLEFIN FIBER: Our trail running and cycling sock is crafted with a carefully selected lightweight fiber that wicks moisture and sweat and will keep you dry and comfortable all day long.

FIRM COMPRESSION: Firm compression supports every contour of your foot to reduce fatigue and stabilize muscles during endurance sports.

CONTOURED FIT: The sock is designed to stay in place. No bunching, no voids, no blisters.

MINIMUM CUSHION: A thin profile and light cushion provides a responsive feel to keep you in sync with your feet.

SEAMLESS TOE: Virtually invisible toe seam eliminates friction on the toes.

BREATHABLE: The mesh knit pattern in the footbed and the built in channels in the upper part of the sock are designed to release heat to keep your feet cool.

CREW CUFF HEIGHT: The crew sock cuff sits below the calf for extra support as well as protection from debris.

Read more Swiftwick Aspire Four, running crew socks, trail running socks, cycling crew socks, stripes socks


Swiftwick's team empowers life's adventures through thoughtful design, superior craftsmanship, and a continuous passion to help others do what moves them.

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manufacturing cycling socks lifestyle

Made in usa, socks for hiking, socks for running


We believe our customers thrive by achieving their personal best — whether walking a 5k or racing on the world stage.


We are a team of athletes serving athletes with a shared passion for a fun, active lifestyle.


We produce durable products that last, manufacturing in the USA to reduce garment miles, choosing materials and processes that minimize waste and energy consumption.


Swiftwick crafts higher quality socks with cutting-edge technologies and a greater focus on sustainability, creating larger impacts on our local communities.

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We unapologetically create the best products through relentless attention to design, development, and detail. Get a pair today and we're sure you will agree.

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ASPIRE Cuff Heights Available No Show Ankle Quarter Crew Crew Tall Crew Knee High
Recommended for Running and Cycling Golf, Running and Cycling Running and Cycling Trail Running and Cycling Cycling Running, Cycling and Snowsports
  • Is Discontinued By Manufacturer: No
  • Product Dimensions: 9 x 5 x 1.5 inches
  • Item model number: 4C010ZZ-S
  • Date First Available: December 14, 2011
  • ASIN: B006M4L1RO
  • Amazon Best Sellers Rank: #13,019 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
    • #24 in Men's Outdoor Recreation Socks
    • #7 in Women's Cycling Socks
    • #21 in Women's Outdoor Recreation Socks

    I bought these for road biking. I was skeptical that they would be too restrictive given their compression level but that it not the case. They fit so nicely in all the right places - they really hug the feet well and do not bunch up at the toes. I will purchase more in other colors over time. I like the special edition colors/patterns that Swiftwick has but don't agree with their dual sizing for them. Socks should be S, M, L, XL not S/M and L/XL.

    Swiftwick claims that if creating socks was an art, the Aspire would be their Mona Lisa. Well I don't know anything about what all goes into making socks, but I can tell u, this does carry a Mona Lisa price... and it's well worth it. Never did it cross my mind that I would pay close to $20 for a pair of socks, but this socks is so top notch that I wouldn't mind picking up another pair. It's the only socks I want to wear for cycling. Too bad pictures can only convey visual descriptions so I can't make you feel how they actually feel. I guess u can still appreciate the look of them tho.

    The socks in my pics are for Aspire Four, size medium.

    Highly recommended

    Opened the packaging of my brand new socks and found a hole on the top of the left sock just above the big toe. Aside from it looking a bit Hobo-Chic, the socks fit well and are comfortable. They also have enough compression to stay up above the ankle but not too much that it cuts off circulation. For nearly 20 dollars a pair, I'm dissapointed in the QA. If there is a hole straight out at the package, who knows how durable they will be.

    I was looking for a pair of neon-yellow socks for road cycling. I've seen others wearing this brand and thought I'd try it. They have some compression which I wanted. They have the bright fluoro color. I have narrow feet and the only issue is that they are a bit wide in the toe area. I can see and feel a little extra material in the toe box, but not enough to say these are bad socks. I would consider buying another pair. They are well made and wash well. I let them air dry after washing and they are fine.

    These are my husband's favorite socks for cycling. The fit is snug and secure, but not too tight. The fabric feels smooth, and I love the length of the Four, which his above the ankle but below the calf. I too have become an admirer of the Swiftwick and now own a few pairs myself. Even during long hot bike rides, the socks keep our feet dry. I purchased 5 from Amazon for my husband's birthday a few weeks ago. He was smiling from ear to ear when he saw the new, colorful pairs of socks he had. His favorite of them all was the grey socks with red stripes!

    Not my first experience with Swiftwick so I expected a quality product. I bought these to be visible on my bike and I do believe they help. These are very bright, even after a few washings. I did get caught in the rain and they got stained but that road grime will stain anything.

    Love theses socks. Great for cycling. Cool. Comfortable. I have many pairs of these in black and white. I recently bought them in the high-viz yellow. Fit fine initially but shrunk notably when washed and much more than the other colors I have. Can not explain why as all socks are washed / dried together. If I were to do it again, I might consider the next size up. Just a thought....

    The color is perfect and matches my Bianchi road bike! The compression is just right & doesn’t feel too tight. I ended up buying a second pair and my boyfriend also bought the red/black pair - we are both very happy with these socks!

    My go to performance socks. I got these for basket ball. But great for any thing.