Steel Blue Southern Cross S3 grey safety boot

Steel Blue Southern Cross Zip S3 Slate is a high-ankle S3 safety boot designed for construction, industrial work, logistics, maintenance and heavy-duty installation environments. The Slate colour variant provides the same EN ISO 20345 (Safety footwear) S3 protection level, steel toe protection, penetration resistance and zip-sided construction found in the Black and Sand versions.

General information

Southern Cross Zip S3 Slate is an Australian-style high-ankle safety boot developed for full-time occupational use. The Slate version offers a neutral grey appearance positioned between the traditional black and sand colour options while retaining the same technical platform.

The primary functional benefit is its impact-absorbing sole construction for users who spend extended periods standing and walking. For procurement and HSE applications, this model belongs to the category of professional S3 safety footwear intended for continuous use.

Technical specifications

• FOOTWEAR TYPE: high-ankle safety boot, 150 mm height
• FASTENING: lace-up with side zip
• PROTECTION CLASS: EN ISO 20345 (Safety footwear) S3
• TOE PROTECTION: steel toe cap
• PENETRATION RESISTANCE: steel penetration-resistant midsole
• WATERPROOFING or MEMBRANE: water-resistant construction
• UPPER MATERIAL: water-resistant leather
• OUTSOLE: TPU outsole, heat resistant to 130°C
• LINING: Baltico® lining
• INSOLE: Ortho Rebound® footbed
• FIT: standard to slightly narrow
• LAST: standard
• ANKLE SUPPORT: high-ankle construction
• SLIP RESISTANCE: SRC-rated slip and oil resistant outsole
• ESD or ANTISTATIC: antistatic
• COLOUR: Slate / grey
• SIZE RANGE: 37–49

Advantages and differences compared to similar products

• The high-ankle design provides greater ankle support than low-cut safety footwear.
• The side zip improves daily usability while maintaining lace-adjusted fit.
• The comfort-focused sole construction differs from many traditional S3 boots with firmer underfoot feel.
• The Slate colour provides a visual compromise between black and sand safety footwear options.

Intended use

This safety boot is suitable for construction sites, industrial facilities, logistics operations, production environments, warehousing, maintenance work and heavy-duty installation tasks. It is intended for users requiring daily S3-certified protection.

It is not specifically designed for specialist welding protection, chemical protection or fully waterproof membrane applications. For purchasing teams, the key specification is full S3 protection for routine occupational use.

Fitting, purchasing and quotation requests

The product can be ordered for fitting evaluation. Ask the seller about sizing, fitting, company purchases, larger quantities, quotation requests and alternative Steel Blue models.

The fit generally follows standard sizing. Users with wider feet should assess fit carefully due to the standard to slightly narrow profile.

If the product is immediately available from a Protecton Oy store, the product has return eligibility according to the seller’s terms. If the product is a special-order item and is not available from a Protecton Oy store, return eligibility depends on the manufacturer and brand. Not all brands accept returns, so return eligibility is always product-code-specific and manufacturer-specific. For fitting, size selection, special-order products and company purchases, confirm return eligibility with the seller before ordering.

Q & A

Is this the same model as the Black and Sand versions?

Yes. Construction, protection level and intended use are identical. The difference is the colour.

Is this a high-ankle safety boot?

Yes. The model features an approximately 150 mm upper and side zip construction.

Is it suitable for everyday use?

Yes. The boot is designed for daily professional use in construction, industrial and logistics environments.

Can the footbed be replaced?

The boot includes an Ortho Rebound® footbed as standard. Compatibility with alternative insoles should be confirmed with the seller.

What is the availability?

Availability starts from 1 day.

Can the product be returned?

Store-stocked products have return eligibility according to the seller's terms. Return eligibility for special-order products depends on the manufacturer, brand and product-specific conditions. For fitting orders, return conditions should be confirmed before ordering.

Where can I obtain technical information?

Contact the seller for sizing guidance, availability information, quotations and technical product details.

Delivery information

Availability starts from 1 day. The product can be ordered for fitting evaluation. Store availability and delivery methods are provided separately on the product page.