Page 19 - Helly Hansen Catalogue

THERE ARE NUMEROUS TYPES OF HELLY TECH® FABRICS. THE
MAIN DIFFERENTIATOR IS THE NUMBER OF PLIES (OR LAYERS)
THE FABRIC IS BUILT FROM.

Extremely waterproof and breathable designs and
constructions. For highly aerobic, extremely wet or
unusually long-lasting activities in extremely
harsh conditions.

Highly waterproof and extra breathable sport
specific designs and constructions. For a wide range
of high performance outdoor activities during highly
challenging, changing and unpredictable
weather conditions.

Fully waterproof, windproof and breathable
fabrics and constructions. For all situations and
weather conditions where protection from the
elements is needed.

3 PLY CONSTRUCTION
Outer fabric + membrane and inner fabricbonded together
for lightweight, quick drying and durability.

2,5 PLY CONSTRUCTION
Outer fabric + membrane or coating bonded together with
protective print on the inside for extreme lightweight and
packability.

2 PLY CONSTRUCTION
Outer fabric + membrane or coating bonded together for
breathable waterproofness, protected by inside lining or
mesh adding warmth and comfort.

LAB TESTS

WATER COLUMN, ISO 811 and JIS LIS L 1092-B1
Gives the value pressure mm of water held back by fabric. 10.000mm is the same pressure you
would experience diving to 10m or equal to the pressure from a fire hose.
BREATHABILITY, JIS L 1099-1985-B1
Gives the value of g/m /24h - the amount of water molecules that can pass through
2
1 square meter of fabric within 24 hours.
15.000 grams breathability equals that a jacket is able to pass 30 lites of water in 24 hours. In
comparison, our human body perspirates 1 liter per 24 hours.
WATER REPELLENCE, ISO 4920: 1981 and AATCC 35-2006
Spray test: testing of the durable water repellence before and after washing, by drizzling
the fabric and measure how many drops that bounce up and if any attaches or wets out the
fabric surface.

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