The FS4™ Plantar Fasciitis Sock features OS1st’s Compression Zone Technology® using four zones of light to firm compression to heel and arch pain. The zones stretch the plantar fascia, provide support, and add heel cushioning without the bulk.
For the best fit, it is important that you use the size chart before ordering.
- Targeted Conditions: Plantar fasciitis, foot fatigue, arch/heel pain
- Medical grade compression
- Made of Ultra-Soft Nylon
- Silver Ion moisture wicking and anti-odor/anti-microbial treatment
- Compression Zone Technology
- 360 degree blister protection
- Y-Gore heel for anatomical shape with seamless construction
- Hand wash and hang dry only
- Do not wash with bleach or a product that contains bleach
Before ordering, use this size chart for accurate fit.
Orthosleeve Size |
Men |
Women |
| S | 3-5.5 | 4-6.5 |
| M | 6-9.5 | 7-10.5 |
| L | 10-13 | 11 Plus |
| XL | 13.5-16 |