Home Men's Thermal #566

Men's Thermal #566

Regular price $249.95 Sale price $74.98
70% OFF
Size: 4 US Men (3 AU/UK)

Size

size

Boot Size Guide

Our boots are stamped with the AU/UK size on the sole. Order in your usual US size and we will ship the matching AU/UK size. All lifestyle boots are unisex — find your row by foot length for the most accurate fit.

Adult Unisex Sizes

Applies to all unisex lifestyle boots, including women’s heel and high-top styles. Measure both feet and use the larger foot length (mm) to find your size.

Swipe the table sideways to see all sizes →

AU/UK Size Foot Length (mm) US Men US Women EU Size
2 212 3 5 34.5
3 220 4 6 35.5
3.5 220 4.5 6.5 36
4 228 5 7 37
4.5 228 5.5 7.5 37.5
5 237 6 8 38
5.5 237 6.5 8.5 38.5
6 246 7 9 39
6.5 246 7.5 9.5 40
7 254 8 10 41
7.5 254 8.5 10.5 41.5
8 262 9 11 42
8.5 262 9.5 12 42.5
9 271 10 — 43
9.5 271 10.5 — 43.5
10 280 11 — 44
10.5 280 11.5 — 45
11 288 12 — 46
11.5 288 12.5 — 46.5
12 296 13 — 47
13 305 14 — 48
14 314 15 — 49
15 324 16 — 50
16 332 17 — 51

Fit tip: Boots fit true to size. Half sizes share the same footbed as the full size — the extra leather in the upper adds width, not length. Wide feet? Go a half size up.

Women’s Safety Sizes

Dedicated women’s fit on safety work boots. Find your row by measured foot length (mm) — do not convert from the unisex chart.

Swipe the table sideways to see all sizes →

AU Women’s Size Foot Length (mm) EU Size
5 212 34.5
6 220 36
6.5 220 36.5
7 228 37
7.5 228 37.5
8 237 38
8.5 237 38.5
9 246 39
9.5 246 40
10 254 41
10.5 254 41.5
11 262 42
12 271 43

Fit tip: Safety boots should feel snug over the instep with no heel slip. As with all our leather boots, the upper stretches slightly with wear — never lengthwise.

Kids & Youth Sizes

Measure your child’s foot in millimetres (both feet, use the larger) and match the row below. Fit by measured foot length, not by age.

Swipe the table sideways to see all sizes →

Kids AU/UK Size Foot Length (IN) Foot Length (mm) EU Size
Kids 7 5 ⅝ 144 24
Kids 8 6 152 25
Kids 9 6 ⅜ 161 26.5
Kids 10 6 ⅝ 169 28
Kids 11 7 177 29
Kids 12 7 ⅜ 186 30.5
Kids 13 7 ⅝ 195 31.5
Youth 1 8 203 33
Youth 2 8 ⅜ 212 34.5
Youth 3 8 ⅝ 220 35.5

Fit tip: Every kids’ style includes removable footbeds, so you can fine-tune the fit as feet grow. Leave about a thumb’s width of growing room in front of the longest toe.

How to Measure & Fit

Three quick steps to your perfect pair:

  1. Measure foot length. Stand barefoot on a sheet of paper and mark where your longest toe ends. Measure in millimetres from the back of your heel to the tip of your big toe. Repeat with both feet and use the larger measurement to find your size in the chart.
  2. Need more width? Choose a half size up. Half sizes use the exact same footbed as the whole size — they simply add extra leather in the upper for wider feet.
  3. Try them on properly. Try boots on standing up, wearing the socks or stockings you plan to wear, on a carpeted surface to protect the soles.

Fit Notes

  • Boots fit true to size. The leather stretches and molds to your feet over time, but never lengthwise.
  • When trying on, there should be a slight give in the heel and about half a centimetre (≈ ¼ inch) of space between your longest toe and the front of the boot.
  • The leather will stretch slightly over the instep with repeated wear.
  • Classic pull-on styles run slightly wider than the original last and include extra insoles to fine-tune the fit.
  • Dress styles have a slightly longer fit — some wearers go down a half or full size in these.
  • Between sizes or prefer a roomy fit? Size up. Prefer a snug fit? Stay with the smaller size.

Why the heel slips at first: A little heel movement on day one is normal — it disappears as the leather flexes and molds to your foot within the first few wears.

Size conversions are provided as a guide only. Fit can vary slightly between lasts, leathers and lacing systems. If you are between sizes, we recommend measuring your feet and choosing by foot length (mm).

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Men's Thermal #566

Men's Thermal #566

Sturdy and weatherproof, the #566 Thermal boot in black is built for any weather. Contoured footbed with genuine sheepswool lining, waterproof* leather and Thinsulate® insulation will keep your feet toasty and dry.

  • Weatherproof

    The legendary Chelsea boot with weather-ready features to keep you warm and dry.

  • Waterproof* Leather

    Waterproof* leather tested for resistance to water penetration up to 12,000/15,000 flexes.

  • Sheepswool Footbed

    Removable genuine shearling footbeds for warmth and comfort.

  • Built-In Shock Absorption

    XRD® Technology in the heel absorbs up to 90% of walking impact.