Injinji Ultra Run No-Show - Poseidon
Injinji socks redefine what your feet experience in motion. The signature five-toe design allows each toe to move naturally, promoting better alignment, improved balance, and reduced friction—minimising the risk of blisters on even the longest efforts.
Constructed from premium, moisture-wicking fibres, these socks keep your feet dry, cool, and comfortable in all conditions. The advanced fabric blend offers a soft yet durable feel, with breathable mesh zones and targeted cushioning providing support exactly where it’s needed.
Every detail is considered—from the anatomical fit that mirrors the shape of your foot, to the seamless construction that eliminates irritation. The result is a high-performance sock that feels unobtrusive, yet delivers exceptional comfort and protection.
We believe in happy toes. (It’s kind of our 'thing' here at Altra). That’s why we stock Injinji Performance Socks - because Altra shoes give your toes the freedom to splay when you run, and Injinji socks allow your toes to move inside the wide toebox.
Injinji’s and Altras are like Jordan and Pippin, Sonny and Cher, shoes and, er, socks…
Get THE most comfortable running socks on the market. Say goodbye to blisters, foot cramps and squished little piggies. Say hello to high-performance socks.
Injinji socks are designed with happy feet in mind!
Your Injinji toesock size is based on your shoe size, which you can check below:
S: UK 4-6.5
M: UK 7-9.5
L: UK 10-12
Unless otherwise noted, Injinji socks are unisex.
PS: If you’re new to the world of toesocks, we recommend wearing your Injinji socks a few times to allow your feet to adjust to our unique fit.