Why "one size" is not the problem you think
StayLocked is one size, built to fit EU 39–45. That range is possible because of the material, not despite it. The blend is cotton-rich with a proper dose of elastane — 55% cotton, 35% nylon, 7% elastane, 3% polyester — and the elastane is what lets the fabric expand around a wider foot.
A stretchy, compressive sock behaves differently on a wide foot than a rigid one. Instead of a fixed shape you have to squeeze into, you have a fabric that conforms to your foot. Wider feet fill out the stretch; narrower feet leave a little in reserve. Both end up hugged.
Does the grip survive a wider foot?
This is the part that actually matters, and it is good news. The grip is not the fabric — it is the two-sided silicone pads. Inside, they grip your foot. Outside, they grip the boot lining. That two-sided clamp is the whole mechanism.
On a wider foot the sock sits taut. Taut fabric keeps those silicone pads flat and pressed into contact, which is exactly what you want. If anything, a snug fit helps the grip, because there is no slack for the pads to shift around in.
Wide feet do not weaken the grip — they tension the sock, and tension is what keeps the pads locked in.
Comfort and breathability on a fuller foot
Wide feet run warm, so the cotton-rich blend earns its place. Cotton keeps the sock breathable, and the structured knit holds its shape rather than collapsing into folds. That means:
- No pinch points from a rigid, undersized fabric.
- Fewer folds and creases, which are common hotspots on a broad foot.
- Even compression across the width, so the grip is spread out, not stacked on one edge.
Where the honest limit is
Let us be straight. If you sit at the very top of EU 45 with an extra-wide foot, the fit will feel firm — that is the stretch doing its job, but it is a snugger experience than a mid-range foot. That firmness is not a fault; it is what makes the grip bite. And because there is a 14-day money-back guarantee, you are not gambling: try them, move in them, and decide.
Quick answer
- One size fits EU 39–45 thanks to elastane stretch.
- Wide feet get a snug, secure fit — the fabric conforms, not pinches.
- Grip still works — taut fabric keeps the silicone pads pressed in.
- 14-day guarantee means you can test the fit risk-free.
The bottom line for wide feet
Wide feet are exactly the case where a stretchy, compressive grip sock shines — you fill the fabric, tension the pads, and lock in. If you want to double-check your numbers before ordering, our grip socks sizing guide walks through the EU 39–45 range and how the stretch behaves across it.