Fristads ComfortStep Safety Boot Waterproof S7S Mid

The ultimate all-weather safety boot. Built for when conditions get serious.

The Fristads ComfortStep Safety Boot Waterproof S7S Mid is the flagship of the ComfortStep range — a comprehensively specified, fully waterproof safety boot engineered for professionals who work outdoors in demanding, unpredictable conditions. Combining an HDry® waterproof breathable membrane, a Vibram® Ecostep Pro rubber outsole, recycled CORDURA® upper, and the anatomic FootShape fit system with BOA® precision lacing, this is a boot that refuses to compromise on comfort, protection, or performance — whatever the weather throws at it.

True Waterproofing. Not Just Water Resistance.

The defining feature of the S7S Mid is its HDry® waterproof membrane — a breathable, PFAS-free barrier made from mostly recycled material that prevents water from penetrating the boot entirely, keeping it on the outer surface rather than allowing it to soak in. Unlike treated uppers that lose their repellency over time, the HDry® membrane provides durable, reliable waterproofing that holds up through repeated exposure to rain, puddles, mud, and wet terrain. Critically, the membrane is also breathable — actively wicking sweat and moisture away from the foot — so boots dry quickly and feet stay comfortable even during high-exertion work.

Vibram® Ecostep Pro: Grip You Can Trust

Fitted with a Vibram® Ecostep Pro outsole — one of the most respected names in high-performance rubber compounds — the S7S Mid delivers exceptional traction across the challenging surfaces that define outdoor construction and heavy industry. Slip-resistant across wet, oily, and uneven terrain, the outsole is also profiled for specific ladder grip performance and carries resistance to heat, fuel, and oil. Up to 30% of the rubber is recycled, maintaining Fristads' commitment to sustainable material choices without sacrificing the grip performance Vibram® is known for worldwide.

FootShape: Comfort Built Into the Structure

The Fristads FootShape wide toe box ensures the foot is never compressed into an unnatural profile. By accommodating the natural spread of the foot, the FootShape design improves balance and stability on uneven ground, reduces pressure-related fatigue, and supports healthy posture throughout the working day. For professionals working long shifts outdoors — on groundworks, scaffolding, or across building sites — this structural advantage is felt from the first hour to the last.

BOA® Precision Lacing for All-Day Security

The integrated BOA® Fit System delivers a fast, micro-adjustable, consistent fit every time — critical in outdoor environments where boots need to stay securely in place across varying terrain and physical demands. The tongue pressure equalizer, developed in collaboration with BOA®, distributes tension uniformly across the foot to eliminate pressure points. BOA® components are made from 50% post-consumer recycled polycarbonate, reinforcing the sustainable credentials of the overall build.

Built for the Harshest Sites

The recycled CORDURA® upper — 100% recycled polyamide — provides outstanding abrasion resistance against the physical punishment of outdoor construction environments, backed by an extra durable scuff cap on the most exposed zones. Padded shaft edges protect and cushion around the ankle, and the easy "step out" functionality makes removing the boot effortless at the end of a long shift. The breathable 100% recycled polyester lining manages internal moisture and temperature throughout the day.

Uncompromising Underfoot Protection

A flexible Dynaflex® 3mm nail protection plate provides reliable defence against sharp underfoot hazards, while the fiberglass toe cap — incorporating partly bio-based polyamide — delivers robust impact and compression resistance without adding metal to the construction. A shock-absorbing EVA midsole and heel stabilizer reduce impact fatigue across long working days on hard ground.

Anatomic Comfort for Standing or Moving

The ActiveStep insole delivers an anatomically calibrated heel-to-toe drop that supports natural body alignment and reduces fatigue across a full shift. Workers with predominantly stationary roles can swap it for the separately available SteadyStep insole — engineered specifically for standing-focused work — transforming the comfort profile of the boot without replacing the footwear itself.

Sustainability at Every Layer

The S7S Mid is one of the most sustainably constructed safety boots in its class. The CORDURA® upper is 100% recycled polyamide. The lining is 100% recycled polyester. The HDry® membrane is 85% recycled material and PFAS free. The Vibram® outsole contains up to 30% recycled rubber. The insole contains 44% recycled PU. The toecap incorporates bio-based polyamide. The BOA® system uses 50% post-consumer recycled polycarbonate. For procurement teams and businesses with ESG commitments, this boot delivers measurable environmental credentials across its full material specification.

S7S Certified — The Highest Safety Class

Approved to EN ISO 20345:2022+A1:2024 at safety class S7S — the highest available — with a full suite of performance ratings: SR (slip resistance), FO (fuel and oil resistance), LG (ladder grip), SC (scuff cap), HI (heat insulation), CI (cold insulation), HRO (heat-resistant outsole), and ESD approval to IEC 61340-5-1:2024. Fully metal free, suitable for sites with metal detection controls.

The definitive choice for outdoor heavy-duty work in building and construction, civil engineering, groundworks, and any environment demanding the highest level of waterproof safety footwear performance.

Please Note — VAT Relief on Safety Boots: These safety boots are available to purchase online VAT free for personal use. If you are purchasing on behalf of a company for employee use, please contact us to place your order, as VAT must be applied to business purchases in accordance with HMRC guidelines.

Key Features:

• S7S safety class — the highest available safety rating
• HDry® waterproof, breathable, PFAS-free membrane (85% recycled material)
• Vibram® Ecostep Pro slip-resistant outsole (up to 30% recycled rubber)
• Fristads FootShape wide toe box for natural fit, balance and stability
• BOA® Fit System for fast, precise lacing (50% post-consumer recycled)
• Anatomic ActiveStep insole with heel-to-toe drop (swappable for SteadyStep)
• Water-repellent upper in recycled CORDURA® 100% recycled polyamide
• Breathable lining in 100% recycled polyester
• Fiberglass toe cap with partly bio-based polyamide
• Flexible Dynaflex® 3mm nail protection
• Outsole designed for specific ladder grip
• Shock-absorbing EVA midsole and heel stabilizer
• Extra durable scuff cap and padded shaft edges
• Easy "step out" functionality
• Metal free and ESD-approved (EN ISO 20345:2022+A1:2024 & IEC 61340-5-1:2024)
• Approved ratings: S7S SR FO LG SC HI CI HRO ESD

Materials: Upper: CORDURA® 100% recycled polyamide | HDry® membrane: 85% recycled, PFAS free | Lining: 100% recycled polyester | Outsole: Vibram® rubber (up to 30% recycled) | Midsole: EVA | Insole: 84% PU (44% recycled), 11% polyester, 4% carbon, 1% recycled EVA | Toecap: 53% fiberglass, 47% bio-based polyamide | Nail protection: Dynaflex® polyethylene | BOA®: 50% post-consumer recycled polycarbonate

Product Code: 302117