Steadier Support For Longer Runs
Threo Running Socks bring airy comfort to demanding workouts. Targeted compression supports arches as distance and effort increase. Reflective accents add visibility when evening miles begin.
Cool, Dry Feel
Open mesh moves perspiration away during hard efforts. Your skin stays fresher as temperatures and pace rise.

Secure Arch Support
Graduated compression steadies each step across varied terrain. A close fit helps limit rubbing on longer outings.

Nighttime Visibility
Bright reflective details catch passing light after sunset. Elastic cuffs stay put while you run, ride, or hike.

Size guide

TO MEASURE YOUR FEET:
Stand barefoot with your heel against the wall.
Place a ruler on the floor parallel to your foot with the end of the ruler against the wall.
Measure the length between the wall and the end of your longest toe.
| SIZE | US | UK | EU | FOOT LENGTH | |
|---|---|---|---|---|---|
| cm | inch | ||||
| M | 5-8 | 3.5-6.5 | 36-40 | 22.6-25.2 | 8.9-9.92 |
| L | 8.5-12 | 7-10.5 | 41-45 | 25.6-28.6 | 10.08-11.26 |
| Size | US | UK | EU | Foot length | |
|---|---|---|---|---|---|
| cm | inch | ||||
| 35 | 5.5 | 4 | 35 | 23 | 9.06 |
| 36 | 6 | 4.5 | 36.5 | 23.5 | 9.25 |
| 37 | 6.5 | 5 | 37 | 24 | 9.45 |
| 38 | 7 | 5.5 | 38 | 24.5 | 9.84 |
| 39 | 7.5 | 6.5 | 38.5 | 25 | 10.04 |
| 40 | 8 | 7 | 39 | 25.5 | 10.04 |
| 41 | 8.5 | 7.5 | 41 | 26 | 10.24 |
| 42 | 9 | 8 | 42 | 26.5 | 10.43 |
| 43 | 9.5 | 9.5 | 43 | 27 | 10.86 |
| 44 | 10 | 10 | 44 | 28 | 11.22 |























O***L (verified buyer)
New Zealand
After trying the black sock on my tiled floor, I liked how the cuff held without sliding down my ankle
J***K (verified buyer)
New Zealand
The beige socks with orange stripes felt soft on my feet, and the left-right marks made getting ready quick
M***H (verified buyer)
New Zealand
I wore the lime socks with my white running shoes, and my arches felt supported through a longer neighborhood run
N***P (verified buyer)
New Zealand
The bright green pair feels snug around my arches, and the blue and orange cuff makes it easy to spot in my drawer
C***R (verified buyer)
New Zealand
I picked the black socks for evening runs, and the green arrows helped me put each side on correctly fast
E***B (verified buyer)
New Zealand
I like them for evening walks
S***T (verified buyer)
New Zealand
Nice snug fit without rubbing
D***M (verified buyer)
New Zealand
Good support for my weekend jogs
H***V (verified buyer)
New Zealand
Kept my feet cool during runs
P***S (verified buyer)
New Zealand
I wore these on a hilly five-mile run, and my feet stayed dry while the arch support felt steady