Exclusive Technologies


Fabric Technology

Our fabrics are built for the movements, environmental comfort, and provide the ultimate weather protection through advance waterproof/breathable technology.

Durable Water Repellent Logo

DWR Outer Shell

The PFC-Free DWR (Durable Water Repellent) technology is a polymer coating added to outerwear to provide water-resistant protection. The DWR technology prevents light rain and snow precipitation from saturating the outer fabric surface and prevents fabric from becoming weighed down by excess moisture.

UPF Protection Logo

UPF Protection

STORMTECH UPF Protection products are designed with engineered fabrics to provide sun protection to the wearer as well as extra comfort and coolness.

HD Out Shell Logo

Out Shell

The STORMTECH HD Out Shell is a heavy-duty and highly-durable taslon polyester fabric constructed to withstand the most rigorous and extreme applications and industries.

Technical Climatology

Ultimate weather protection through advanced waterproof/breathable technology-perfected to keep moisture at bay, inside and out.

H2Xtreme Logo
H2Xtreme Diagram

Active Moisture Management

Next-to-skin climate control with moisture management technology to regulate your core.

H2X Dry Logo
H2X Dry Diagram

Lightweight Elemental Defense

Highly efficient and highly compressible synthetic down alternative-maximum warmth in extreme cold.

Feather Free Logo
Feather Free Diagram

Technology Icons

With over 40 years’ experience outfitting adventurers for extreme weather conditions, innovation is at the core of STORMTECH’s culture and values. Our functional and durable outdoor apparel is built using advanced fabric technologies, and smart sourcing and manufacturing. To help our customer easily identify the benefits of our high-performance gear, we have developed a collection of 8 technology icons:

Waterproof Icon


The waterproof icon identifies waterproof fabric. The ‘mm’ rating is a standardized test determined by placing a 1” x 1” tube over the fabric to determine how high (in mm’s) a column of water can be suspended before the fabric leaks. The higher the rating, the higher the waterproofness.

Basic | Level 1: 600mm to 2,000mm
High | Level 2: 2,000mm to 8,000mm
Extreme | Level 3: 8,000 to 15,000mm+

Breathable Icon


The breathable icon identifies breathable fabric. The ‘g/m2’ rating is a standardized test determined by measuring how readily oxygen and moisture vapor molecules pass through the fabric, under controlled laboratory conditions. The higher the rating, the higher the breathability.

Basic | Level 1: 1,000g/m2
High | Level 2: 5,000g/m2
Extreme | Level 3: 15,000g/m2+

Thermal Rating Icon

Thermal Rating

The thermal rating is the temperature range for which the garment is optimally suited.

Mild: +20°C (68°F) to +5°C (41°F)
Cold: +5°C (41°F) to -10°C (14°F)
Extreme Cold: -10°C (14°F) to -30°C (-22°F)

Seam Sealed Icon


Seam sealing is the application of a specialized waterproof film used to seal seams. Because sewing needles create small holes that will cause the fabric to leak, seam-sealing is used to seal the holes, to make the seam waterproof. Fully seam-sealed indicates that all seams are sealed, to make a watertight outer membrane.

Critical Seam Seal Icon

Critical Seam-Seal

The critical seam seal icon indicates that the seams and junctions most vulnerable to leak under normal conditions - typically the seams on the neck, shoulders, and chest – are sealed. In this case, not all seams are sealed. Critical seam sealing is a suitable technology for most outdoor activities, but full seam sealing is best for extreme weather.

Ultrasonic Welded Seams Icon

Ultrasonic Welded Seams

Ultrasonic welded seams make a watertight seam using mechanical vibrations above the audible range to ‘weld’ fabric panels together, without any needle punctures from sewing. Ultrasonic seam welding is an advanced manufacturing process and makes an absolute leak-proof seam.

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Device Size

The maximum device size icon indicates the maximum size device that the product device pocket or compartment will accommodate.

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RFID Block

RFID block materials effectively block radiofrequency. Chip-enabled cards like credit cards and identification cards can be wirelessly ‘skimmed’ to collect your personal data. RFID block technology protects from electronic pickpocketing, and wireless theft.