Blundstone Unisex Original 510 Chelsea Boot
- Free shipping over $75
- In stock, ready to ship
- Backordered, shipping soon
| AU/UK Size | EU Size | US Men's | US Women's | Foot length (mm) | ||
|---|---|---|---|---|---|---|
| AU/UK | US | AU/UK | US | |||
| 2 | 34.5 | 2 | 3 | — | — | 212 |
| 3 | 35.5 | 3 | 4 | 3 | 5 | 220 |
| 3.5 | 36 | 3.5 | 4.5 | 3.5 | 5.5 | 220 |
| 4 | 37 | 4 | 5 | 4 | 6 | 228 |
| 4.5 | 37.5 | 4.5 | 5.5 | 4.5 | 7 | 228 |
| 5 | 38 | 5 | 6 | 5 | 8 | 237 |
| 5.5 | 38.5 | 5.5 | 6.5 | 5.5 | 8.5 | 237 |
| 6 | 39 | 6 | 7 | 6 | 9 | 246 |
| 6.5 | 40 | 6.5 | 7.5 | 6.5 | 9.5 | 246 |
| 7 | 41 | 7 | 8 | 7 | 10 | 254 |
| 7.5 | 41.5 | 7.5 | 8.5 | 7.5 | 10.5 | 254 |
| 8 | 42 | 8 | 9 | 8 | 11 | 262 |
| 8.5 | 42.5 | 8.5 | 9.5 | — | — | 262 |
| 9 | 43 | 9 | 10 | — | — | 271 |
| 9.5 | 43.5 | 9.5 | 10.5 | — | — | 271 |
| 10 | 44 | 10 | 11 | — | — | 280 |
| 10.5 | 45 | 10.5 | 11.5 | — | — | 280 |
| 11 | 46 | 11 | 12 | — | — | 288 |
| 12 | 47 | 12 | 13 | — | — | 296 |
| 13 | 48 | 13 | 14 | — | — | 305 |
Blundstone boots are sized in AU/UK sizing. US men's sizes run 1 size larger than AU/UK. US women's sizes run 3 sizes larger than AU/UK. Women's sizing goes up to AU/UK 8 (US women's 11). If you fall between sizes, size up.
Fuss-free and functional, the #510 in understated black leather is proof that simplicity never goes out of style.
The Blundstone 510 Original Black Chelsea is one of the most versatile Blundstone boots. Black goes with everything! A favourite with people in uniform from pilots to posties for all-day, all-season, all-surface comfort. Unisex sizing.
Features
- Premium leather elastic sided boot.
- Fully removable shaped comfort footbed.
- Polyurethane (PU) midsole/thermo-urethane (TPU) outsole highly resistant to hydrolysis and microbial attack.
- Oil, acid and organic fat resistant.
- Outsole heat resistant to 140°C.
- Steel shank - ensures correct step flex point, assists with torsional stability.
- Extra set of footbeds for fit adjustment.
- Lightweight and durable.
Most orders ship within 1 business day
During busy seasons, processing may take up to 2 days
Same‑Day Shipping
Mon–Fri: Orders placed by 12 PM EST
Saturday: Orders placed by 10 AM EST
Orders placed after these times, on Sundays, or on holidays ship the next business day
Free Shipping
Free shipping on all U.S. orders over $75 (continental U.S.)
Carriers Used
Orders ship via USPS or UPS
Weekend/late‑Friday orders may ship USPS to meet timing requirements
Alaska, Hawaii, Military & U.S. Territories
Shipped via USPS Standard/Priority Mail
Typical transit times:
AK/HI/Territories: ~3 days (not guaranteed)
Military addresses: 10–15 days
Transit Times
USPS Priority Mail may display “1‑Day,” “2‑Day,” or “3‑Day,” which reflects USPS’s estimate after the package ships
These estimates do not include processing time.
Need Faster Shipping?
Contact us to request an upgrade to expedited services.
SKU: 510-AUS
