Fabric Technologies

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

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

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

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

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The PFC-Free DWR (Durable Water Repellent) technology is a polymer coating added to outerwear to provide water-resistant protection.

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

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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.

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Anti-snag construction is achieved by using specialized yarns that are less likely to break or unravel when pulled or snagged by incorporating specific knitting techniques that reinforce the fabric and reduce the risk of snagging.

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High loft, high efficiency Thermolex™ synthetic down – developed and tested by STORMTECH is inserted into each quilted panel to a specific fill weight in order to achieve maximum warmth and softness.

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Polygiene StayFresh-treated garments allow you to enjoy the confidence of fresh, all-day wear while minimizing the need for frequent washing.

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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 technology icons.


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.


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

Thermal Rating

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

Mild: +5°C to +20°C
Cold: +10°C to -10°C
Extreme Cold: 0°C to -20°C


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

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

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.

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.

Device Size

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

Self-Stowing Pocket

Shown on items that pack away into their own pocket.