Steel Blue Southern Cross Zip Composite Scuff S3 Black Amber - 398590

The Southern Cross is one of Steel Blue's most trusted styles, and this new Black Amber colourway with a composite toe cap is the most exciting version yet. Built for tradespeople who need genuine all-day protection without the dead weight of a steel toe, the 398590-BBG brings together everything that's made the Southern Cross a go-to across UK construction, utilities, and heavy industry — now with a lightweight composite safety toe that passes the same 200-joule impact standard as its steel equivalent.

At 150mm ankle height with a scalloped, padded collar, it moves with you rather than fighting you on a long shift. The industrial-grade side zip means you're in and out in seconds, while the lace closure lets you dial in the fit precisely. Premium water-resistant nubuck leather keeps the elements out, and the abrasion-resistant scuff cap protects the toe from the daily knock-about that kills cheaper boots early.

Underneath it all is Steel Blue's Trisole® Comfort Technology — the Ortho Rebound® polyurethane footbed and strategically placed Poron® pads work together to cushion your feet, knees, hips, and lower back from shift-long fatigue. The Baltico moisture-wicking lining keeps things dry from the inside, and the TPU outsole is heat-resistant to 130°C, oil-resistant, and SRC-rated for slip resistance on both wet ceramic and steel surfaces — tested to EN ISO 20345.

• 200J composite toe cap — metal-free, airport-friendly, same protection as steel
• S3 rated: EN ISO 20345 certified — penetration resistance, antistatic, water-resistant upper
• Trisole® Comfort Technology with Ortho Rebound® footbed and Poron® cushioning
• Industrial-grade side zip with lace closure for a secure, precise fit
• Premium water-resistant nubuck leather upper
• Abrasion-resistant scuff cap for extended toe protection
• Baltico moisture-wicking hydrophobic lining
• TPU outsole: SRC slip-rated, oil-resistant, heat-resistant to 130°C
• 150mm ankle height with scalloped padded collar
• Black Amber colourway — brand new for 2026