The NEW knee-high profile testing phase has been a HUGE success! The perfection of a knee-high profile with our patented arch and ankle support, energy absorption, graduated compression that lasts, blister protection, antimicrobial, moisture-wicking, incredible comfort, and made with sustainable yarns! All the quality you have come to expect from Apolla Socks!
We hope to have this available for purchase in the next couple of months, so please leave your email and we will let you know when it is in stock for purchase!
- Product Features
- Specifications
- Additional Information
Size Guide
| Female Street Shoe Size | Performance Size |
| 13 – 2.5 | XS |
| 2.5 - 6 | S |
| 6/6.5 - 9.5/10 | M |
| 10 - 12.5 | L |
| 11.5 - 14.5/15 | XL |
| 12.5 - 15 | XL Wide |
| Male Street Shoe Size | Performance Size |
| 12.5 - 2 | XS |
| 2.5 - 5.5 | S |
| 6 - 8.5 | M |
| 9 - 11/11.5 | L |
| 11.5 - 12.5/13 | XL |
| 12.5 - 15 | XL Wide |
THE Endurance – Sizing Tips:
For the Endurance sizing, foot size, narrowness and age may change the size. You may consider going down to the smaller size if:
- You are at the low end of a size range, and/or have a narrower foot than average or are petite boned if you prefer a snug fit in the toes you may want to go down a size but if you like wiggle room, go with the size that is recommended.
You may consider going UP to the next size if you are at the TOP of the size range and have a very wide foot or want more wiggle room.
- The Endurance has the MOST freedom in the toes of all sock styles…so with the above rules also consider if you prefer a snug fit in the toes (go with the smaller size you are borderline for) or want some wiggle room (go to the larger size you are border line for).
- Also note, the Endurance hits mid-calf and gives your calves a nice snug hug. Many people crave this support and love what it does for calf aches and shin splints…others find it claustrophobic. If you would not like the profile of the mid-calf, consider going down to the Performance or AMP.
- Wide sizes available in Medium-XL. This may allow wide feet in this size range and at the top of these size ranges to fit more comfortably. It also allows more comfort with wide calves.