Men's zip neck thermal jersey with -20°C protection

Men's HTZ-1 Thermal Zip Neck Base Layer — Stormtech Extreme Cold -20°C

Characteristics

INFO ARTICLE: Ideal for outdoor activities in winter temperatures.
CONFORT RATING :: -20° C
MEN / WOMEN :: Men
COLORS :: BLUE
GREEN
GREY
ORANGE
TOP SIZES: XL
BRAND: Stormtech

ean13 794249858415

TECHNICAL DESCRIPTION

Men's Thermal Zip Neck Base Layer Stormtech HTZ-1

Function 1st Thermal Layer

Technology H2X-DRY® Active Wicking

Use Sport & Extreme Cold

Thermal Protection Down to -20°C*

Technical Fabric Waffle-Knit Thermo-Active Fleece 240 g/m²

The base layer that makes all the difference — dry, warm, comfortable

The Stormtech HTZ-1 is a thermal zip-neck base layer designed to be the 1st layer of your extreme cold system. Its double-thickness waffle-knit construction traps insulating air pockets while H2X-DRY® technology actively wicks moisture away from the skin — keeping you dry even at maximum effort. Close fit, immediate comfort against the skin.

Grand-Froid Expert View

"The HTZ-1 is the piece nobody sees — but the one that determines everything else. Its waffle-knit structure creates insulating air pockets while staying light and breathable. Moisture travels through the fabric and evaporates — you stay dry in all conditions.

We recommend it to anyone doing physical activity in extreme cold: outdoor sport, hiking, skiing, working outside. It's the foundation of the 3-layer system — and a poor base layer undermines everything above it."

Stormtech HTZ-1 Men's Thermal Zip Neck Base Layer

What is it designed for?

1st thermal layer for all physical activities in extreme cold
Hiking, skiing, mountaineering, winter trail running — any activity generating perspiration
Everyday base layer for those who feel the cold and are regularly exposed to low temperatures
Professional outdoor work in cold conditions
Any situation requiring a high-performance first layer within a multi-layer system

Thermal Protection

Recommended use down to -20°C as part of a 3-layer system*. The HTZ-1 is designed to be worn directly against the skin as the 1st layer of a multi-layer system. Its role is to move body moisture upward through the fabric while maintaining immediate warmth at skin level. Worn alone, it suits high-intensity activities from 0°C to -10°C.

How to get the best from it?

The Grand-Froid 3-Layer System:

1st layer — the HTZ-1: directly against the skin — its waffle-knit structure wicks moisture away and maintains an insulating air layer at body contact
2nd layer — mid layer: the thermal adjustment variable. Thin and breathable for high-intensity activities, thick and insulating for low-activity or prolonged cold exposure
3rd layer — waterproof shell: full outer protection against wind, rain and snow

Tip: Get dressed in a cool environment just before heading out — layering up in a heated room saturates your base layers with moisture and reduces their effectiveness from the very first minutes of exposure.

Technical Features

H2X-DRY® Technology: active moisture wicking — perspiration travels through the fabric and evaporates toward the outer layers
Waffle-knit double-thickness construction: air pockets for superior thermal insulation and maximum breathability
1/4 zip reverse coil collar: rapid thermal regulation during effort — partial opening to release heat when needed
Contour side panels: close fit that follows the body without restricting movement
Snag-resistant fabric: robust construction that withstands friction from equipment and outer layers
Contrast cover stitching: clean technical finish
Oeko-Tex certified: free from harmful substances — safe in direct contact with skin

Composition

Material: 95% Polyester / 5% Spandex
Construction: Drop Needle Double Knit Fleece — 240 g/m²
Technology: H2X-DRY® active moisture management
Certification: Oeko-Tex — safe in direct contact with skin

Standards & Commitments

Oeko-Tex certified: tested and approved free from harmful substances — safe in direct contact with skin
SEDEX certified: ethical and responsible supply chain
Pure Earth by Stormtech™: integrated environmental responsibility programme
Stormtech 5-year warranty: commitment to long-term product durability

Size Guide

Close fit — the base layer is worn directly against the skin. Choose your usual size. If in doubt, size up.

Body measurements (cm)	S	M	L	XL	2XL	3XL	4XL	5XL	6XL
Chest	89–97	97–104	104–112	112–119	119–127	127–135	135–142	142–150	150–163
Waist	74–81	81–88	88–98	98–108	108–118	118–128	128–138	138–149	149–159

Care & Durability

Washing: 30°C maximum, gentle cycle
Drying: hang to dry — do not tumble dry
Do not: bleach, iron or dry clean

Returns & Exchanges — 30 Days

You have 30 days from the date of receipt to request a return or exchange on this item.

To ensure every customer receives a strictly new and unworn product, items worn next to the skin must be returned in their original, unopened packaging, exactly as received.

Why choose the HTZ-1?

The HTZ-1 is the foundation of the extreme cold system — the piece that determines the performance of everything above it. Its waffle-knit construction creates insulating air pockets while H2X-DRY® technology actively wicks moisture away from the skin. The result: you stay dry and warm, even at full effort. Oeko-Tex certified, designed in British Columbia since 1977 — the reference base layer for anyone facing extreme cold.

* Indicative thermal rating as part of a full 3-layer system depending on activity level, personal tolerance, wind and humidity.

SUMMARY

The base layer that makes all the difference — dry, warm, comfortable.

The Stormtech HTZ-1 is a thermal zip-neck base layer worn directly against the skin. Its waffle-knit double-thickness construction creates insulating air pockets while H2X-DRY® technology actively wicks moisture away. Close fit, 1/4 zip for rapid thermal regulation during effort. The reference base layer for all extreme cold systems down to -20°C*. Oeko-Tex certified.