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All socks/Sealskinz

Sealskinz Bircham Ankle Length

Ankle length. Cushion not published.

ankle length · no height published, drawn at a typical heightpadding: the maker doesn’t say where · Waterproof membrane

The footwear outline is schematic. Check the cuff with your own shoes.

View at Sealskinz ↗Compare this sock

£37 list price at Sealskinz, checked .

When you want a waterproof membrane for wet trails

An ankle length waterproof sock with a midweight knit and an inner layer of 36% merino wool.

Keep in mind: Water can still get in over the cuff, and the three layers take more room than a standard sock, so try it in your shoes before a wet trip. The low cuff sits below a boot collar, so it suits trail shoes and low hikers rather than boots.

Closest in Sealskinz’s range: the Dunton Ankle Length. They differ in blend; the cuff, weight and size chart are the same.

This sockDunton Ankle Length
BlendSeparate blends for each layerSeparate blends for each layer
List price at Sealskinz£37£39

Compare the two side by side

Materials, padding and sock type

Waterproof membrane · cushion not published

None
Light
Full
Extra
Padding shown schematically. Brand labels do not share a thickness scale.
Exact model
Sealskinz Bircham Ankle Length
Style number
Not published
Size chart
Unisex chart
Cuff height
ankle length
Weight (maker’s term)
midweight
Cushion (maker’s term)
Not published
Cushion location
Not published
Sock type
Waterproof membrane
Layers
3
Material blend
Separate blends for each layer
Wool-free
No, contains wool or alpaca fiber
Facts from
Sealskinz’s UK and global site
List price at Sealskinz
£37 (checked )

Outer: 62% polycolon, 29% nylon, 9% elastane.

Inner: 36% merino wool, 36% acrylic, 18% polyester, 5% nylon, 5% elastane.

The membrane between the layers has no fiber percentage; the maker prints the inner and outer knit blends.

Cushion and weight labels are this brand’s own terms. They are not a shared thickness or temperature rating.

S
M
L
XL
3.568101215

US men’s

Bands follow this chart’s published ranges. S: 3.5–6 · M: 7–9 · L: 10–12 · XL: 13–15

Check the size and the shoe together

Start with the unisex chart for this exact model. Use the size lookup or the whole Sealskinz size chart to find the published range, then check the heel position, toe room and cuff in your footwear.

The maker does not give a heel-to-cuff measurement. Try the socks with your boots to see whether the cuff sits above the collar. See how sock heights differ.

Try the complete layered construction, not only one layer. Extra fabric can change toe room and pressure inside the shoe. The footwear-fit checklist explains what to check.

Care for the exact pair

Wash at 40ºC/105ºF. Low Tumble Dry or Drip Dry. Do Not Dry Clean, Iron, or Bleach.

Use the care lookup for this model’s wash and dry directions. A general wool routine should not override instructions for a membrane, a two-layer construction or a specific treatment.

Another sock to compare

Both constructions contain animal fiber (wool or alpaca). Padding: not published here, “un-cushioned lining” there; check each brand’s size chart.

Bridgedale StormSock Lightweight Ankle uses its own size chart. Compare the two socks to see where their height, material, cushioning and care differ. Matching specs don’t mean they will feel the same in your shoes.

Two socks to compare with it

Same size chart

Sealskinz Briston Mid Length

mid length · not specified. Your Sealskinz size carries over.

Compare side by side

Same cuff height

Warrior Alpaca All-Terrain Sport Alpaca Ankle

Warrior Alpaca · ankle · not specified.

Compare side by side

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Product sources

For source limits and matching rules, read how this guide works.