What Is Waterproof Breathable Fabric? Complete Guide for Marketing 2026

Waterproof breathable fabric is a textile engineered to stop liquid water from entering while letting sweat vapor escape. Our Waterproof Breathable Fabric combines a 100% polyester or nylon tricot face with a micro-porous PU or TPU membrane. It delivers 10,000-20,000 mm hydrostatic head waterproofing and 5,000-15,000 g/m²/24h moisture vapor transmission rate (MVTR), in weights from 140 to 280 GSM.

Unlike a conventional coated polyester that traps heat and moisture, a breathable membrane actively dissipates vapor while maintaining a barrier against rain and wind. This is why the category has become the current industry standard for performance outerwear, protective shells, and other technical textile uses.

At the core is a micro-porous membrane. Pores are large enough to let water vapor molecules pass but small enough to block liquid droplets. Our 3 Layer Waterproof Fabric uses a micro-porous PU or TPU film of 15-30 microns laminated to a high-density nylon or polyester tricot. This construction reaches 20,000-30,000 mm hydrostatic head and 10,000-18,000 g/m²/24h MVTR.

A Durable Water Repellent (DWR) finish is applied to the face side so rain beads off instead of saturating the fabric. PFC-free DWR systems are available, addressing environmental requirements while keeping performance consistent across the life of the product.

Two numbers define performance: hydrostatic head for waterproofing and MVTR for breathability. Our standard Waterproof Breathable Fabric provides 10,000-20,000 mm waterproofing and 5,000-15,000 g/m²/24h breathability. For lighter packable goods, Ripstop Waterproof Fabric offers 5,000-15,000 mm and 3,000-8,000 g/m²/24h. At the top end, 3 Layer Waterproof Fabric delivers 20,000-30,000 mm and 10,000-18,000 g/m²/24h.

Lamination structure affects hand feel, weight, and durability. Choose 2-layer for flexibility, 2.5-layer for a printed inner layer, or 3-layer for maximum toughness. Combining membrane thickness and face material lets you tailor the fabric to use case, from a 140 GSM 2-layer garment to a 280 GSM 3-layer hardshell.

Waterproof breathable fabric is a primary material for Outdoor Apparel, Workwear & Protective Clothing, and Cargo Securement & Transportation. Typical end uses include rain jackets, tents, backpacks, and industrial covers where moisture management and liquid resistance must work together. For lighter assemblies, Ripstop Waterproof Fabric covers 80-180 GSM; for heavy duty, 3 Layer Waterproof Fabric spans 180-280 GSM.

From a sourcing perspective, we supply export-quality waterproof and breathable textiles in rolls to manufacturers serving North America, Europe, and global markets. If you are evaluating a new product, compare hydrostatic head, MVTR, weight, and lamination type against your expected conditions. You can also explore our Waterproof & Breathable Fabric collection and related categories to build a specification.