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Compressport Pro Racing Socks V4.0 Ultralight Run Low


Ultralight, low-cut running socks for maximum ventilation, thermoregulation and performance in hot conditions.

Is the tarmac burning up and the sun beating down? Developed alongside our fastest athletes, the thermoregulating properties of the 4th generation Pro Racing Socks Ultralight Run Low have your back. Or rather, your feet. The featherlight, technical mesh is designed to fit like a second skin, with exceptional ventilation to wick away weat and keep your feet fresh and dry, even in steamy conditions. The reviewed, wider toe box offers an ergonomic fit and improved proprioception, allowing the toes to expand intuitively on landing for a natural, fluid stride. A special knit around the ankle, lighter than the standard running sock, offers gentle support as the tempo builds. Their characteristic arch support prevents the fabric from twisting and irritating in the heat, while a terry cloth reinforcement around the big toe saves you from blackened nails as the distance builds. The special 3D.Dots and Flat.Dots technologies of this ultralight model save on volume and weight but still provide high performance benefits. Six targeted dots offer added protection over the base of the Achilles tendon. Underfoot, a smart pattern – 50% 3D.Dots, 50% Mesh.


  • High performance sweat evacuation thanks to technical mesh panels and ventilation technologies
  • Ultralight fabric for a second-skin feel and maximum comfort when running in hot or tropical conditions
  • Maximum thermoregulation and ventilation thanks to featherweight mesh panels, helping keep your feet fresh and cool

Size guide:

EU UK (Men) UK (Women)
T1 35-38 2,5-5 3-5,5
T2 39-41 5,5-7 6-7,5
T3 42-44 7,5-9,5 8-10
T4 45-48 10-12,5 10,5-13
Shipping & Returns



Orders received before 2.30pm will receive same day dispatch subject to stock availability.  Weekend orders will be processed on the next working day. 

How Much:

Purchases over €95 will have free delivery, whereas purchases below €95 are subject to a €4.50 charge.  UK and European deliveries are subject to a €10 fee.

Our Shipping Partners:

We use both DPD and An Post as our delivery partners. While we aim to get all customers their shipment within 24 hours of ordering, however we do have exceptions.  Please allow 3-5 working days for delivery within Ireland and if you have not received your order by this time please contact us by emailing sales@therunhub.ie referencing the order confirmation number.

Click and Collect:

Orders placed before 4pm will be ready for same day collection in our Ashtown store.  If you wish for a product to be collected from another store, then we may need to carry out an inter-store transfer and we ask that you allow additional time for this to be processed and ready.  You will receive a confirmation mail/call to notify you when your order is ready for collection.

Import duties and taxes on international orders will be assessed by local officials and billed to you separately if applicable. Please contact your customs office for information on duties, taxes and restricted items. Unfortunately we have no control over these charges and cannot predict what they may be. We are unable to reimburse any costs incurred regardless of the circumstances



The Run Hub will not be held responsible for any delays encountered by DPD or An Post.  We strive to get most orders out with next day delivery, but at times our courier partners may experience delays within their own service.   If you are contacted by DPD/An Post personnel and you request delivery to an alternative address to that submitted with your order, you do so at your own risk.  The Run Hub will not be held responsible for any loss or damage to deliveries in this case.

Product Guarantee:

In the unlikely case that you find a fault with your product, please return it to us with a note detailing the issue.  If we find a manufacturing, fault we will happily replace it or refund you.  We aim to deal with returns within 2-3 days of receiving them.  For some faulty returns we may need to seek the opinion of the respective brand.  We will advise you of this referral and the additional timeframe that may be required.  Your statutory rights will not be affected



We value you as a customer and understand that sometimes you may need to return a product for various reasons.  With this in mind, we try to make this process as easy and transparent as possible.
  • By ordering from our website, you agree that you can return or exchange the product(s) within 30 days of your purchase.
  • Proof of purchase will be required with the returned product for refund or exchange.
  • If the product is damaged or soiled upon return, you will be charged for the cost of repair or replacement.  For this reason, we recommend that you use a trusted courier provider to return your purchase to us in the same condition as it was sold.
  • The customer is responsible for shipping costs back to The Run Hub.
  • For in-store purchases, we offer customers the options of an exchange or credit note only.
  • Refunds for online purchases can only be processed if the product is returned to our Ashtown store, Dublin, D15Y577.
  • Online returns are to be approved in writing by emailing sales@therunhub.ie before returning your purchase.
  • Refunds for online purchases will be issued within 7 days of goods returned, subject to the above conditions.
  • Online returns for exchange can be returned to any store.  We advise that you call the store in advance to ensure the size you require to exchange for is in stock.
  • During exceptional circumstances there may be a delay in processing online returns. This will only occur if circumstances outside of our control inhibit our normal business operations. 
  • Returns will be processed via the same method as the original form of payment
  • Please be mindful that some payment providers may take longer than others to refund funds to your account.

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Our gait analysis

Our team takes pride in offering industry-leading customer service, gait analysis, running and footwear advice.

Our main point of difference is our service, part of which involves a personal fitting process called Gait Analysis. Using high-tech scanners and custom video software our highly trained team will guide you through the process and help you understand why we select footwear suited to your needs.

Our natural Gait Analysis is for everyone!