Mens Waterproof Over Trousers With Side Zips
Men's Waterproof Over Trousers with Side Zips
Designed for industrial environments where weather protection and rapid donning/doffing are critical, these over trousers integrate a fully waterproof membrane with side zippers extending from ankle to thigh. The construction prioritizes durability, ease of use over safety boots, and compatibility with layered PPE systems.
Material Composition and Waterproofing Technology
The outer shell uses a 300D polyester oxford weave with a polyurethane coating, providing a hydrostatic head rating of 10,000 mm and resistance to abrasion (Martindale >20,000 cycles). A laminated breathable membrane (MVTR 5,000 g/m²/24h) is bonded to the interior, allowing moisture vapor transmission while blocking liquid ingress. Seams are sealed with 20mm wide thermoplastic polyurethane tape using heat welding at 280°C, ensuring leak-proof integrity at stitch lines.
Side zippers are YKK® AquaGuard® Vislon® type, featuring a polymer-coated coil and hydrophobic flap design. Each zipper includes a storm flap with magnetic closure and a dedicated pull tab for gloved operation. The zipper tape is UV-stabilized polypropylene, retaining flexibility down to -30°C.
Design Features for Industrial Use
An articulated knee pattern with 2° pre-bend reduces fatigue during prolonged kneeling or crouching. Reinforcement patches of 600D Cordura® nylon are applied to the seat, inner thighs, and lower legs, increasing tear resistance by 40% in high-wear zones. The waistband incorporates a 50mm elasticated rear section with adjustable side tabs and a silicone-grip inner layer to prevent slippage when worn over base layers.
Cuffs feature a dual-adjustment system: an internal snap-tab for fine tightening and an external hook-and-loop strap accommodating boot diameters up to 220mm. Reflective tape (EN ISO 20471 Class 2 compliant) is positioned on the lower legs and rear hem, providing 360° visibility in low-light conditions.
Performance Specifications
| Property | Value | Test Standard |
|---|---|---|
| Hydrostatic Head | 10,000 mm | ISO 811 |
| Breathability (MVTR) | 5,000 g/m²/24h | ISO 11092 |
| Tear Strength (Warp) | 45 N | ISO 9073-4 |
| Tear Strength (Weft) | 38 N | ISO 9073-4 |
| Zipper Strength (Avg.) | 180 N | ISO 8387 |
| Flammability Resistance | Pass (No flame spread) | EN 13034-1 (Type PB [6]) |
Typical Applications
These over trousers are specified for industries requiring frequent exposure to precipitation, splashes, or humid conditions while maintaining mobility. In utility maintenance, workers wear them over flame-resistant base layers during storm-related repairs, where side zips allow rapid removal without compromising arc-flash protection underneath. In maritime logistics, they are used during cargo handling in spray zones, where the quick-donning feature reduces downtime during shift changes.
Construction crews employ them during concrete pouring in wet weather, benefiting from the abrasion-resistant kneepads and sealed seams that prevent slurry ingress. Agricultural technicians use them when operating irrigation systems or applying liquid fertilizers, where chemical resistance of the polyurethane coating provides incidental protection against mild corrosives. The design also supports layered use in cold-storage facilities, where workers don them over insulated liners during defrost cycles.
Customization Options
Available in waist sizes 28” to 50” and inseams from 28” to 36”, with custom length adjustments possible in 1” increments. Side zip length can be modified to end at the knee or extend to the waist based on donning requirements. Reinforcement materials can be substituted with Kevlar® blends for cut resistance or PVC-coated nylon for enhanced chemical splash protection.
Reflective tape width and placement can be adjusted to meet specific visibility standards (e.g., ANSI/ISEA 107-2020). Waistband closures can be switched to full elastic, drawcord, or ratchet systems. For environments requiring anti-static properties, conductive yarns can be integrated into the shell fabric (surface resistivity <10⁹ Ω). All customizations are subject to minimum order quantities and tooling considerations.