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Light and airy with just enough insulation.

The H2 Flow Jacket features Helly Hansen's advanced Hollow Heat Flow Technology. The weather-resistant shell fabric breathes and releases moisture when you start to break a sweat, and the fleece insulation layer utilizes oversized air cells for toasty warmth in cold conditions. The combined effect means you'll stay dry, warm, and comfy whether you're marching up steep switchbacks or simply sipping coffee on the backyard deck.

  • Polyester shell fabric is highly breathable and weather resistant
  • Polartec fleece insulation layer uses exaggerated air cells to trap body heat for exceptional cold weather warmth
  • Hollow Heat Flow technology works to regulate core temperature and control moisture
  • Long side zippers provide ventilation when you start to break a sweat
  • Two front pockets warm up cold hands

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Helly Hansen H2 Flow Jacket - Men's

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Here's what others have to say...

4 5

Perfect for variable spring conditions

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I got the H2 Flow for sailing. I needed a jacket that would keep me warm during predawn starts but was able to dump tons of heat when you are sitting on a long stale air downwind run. While it is water resistant it by no means is waterproof but it doesn't really claim to be. It is a bit more of an athletic cut.

Unanswered Question

could I use this coat for snowboarding

What is the center back length of a medium? 

4 5

Lightweight, but well-insulated

  • Familiarity: I've put it through the wringer
  • Fit: True to size

As part of Abilyn Racing (, a sailing team based in New York, my co-skipper and I first began wearing the H2 Flow jacket in mid-April, when the weather in the northeast U.S. was still fairly cold.

The jacket has served us well as both a mid-layer and outer-layer sailing jacket. The material of the jacket is not only very lightweight, but very well-insulated given the unique design.

We tested the jacket in a wide-range of conditions including temperatures down to about 35 degrees F. The H2 Flow coupled with HH Warm baselayer gear is our go-to combination of initial layers for cold-weather sailing, and can be utilized equally to other outdoor sports.

As temperatures warm up and base layers are shed, the H2 Flow allows you to expel heat through two vents located on the torso. These do a good job, but we'd much prefer those vents to be located under the arm pits to maximize heat dissipation.

Overall, we're quite satisfied with both the look and feel of the H2 Flow jacket. Keep an eye out on the outer material. Because the material is thin, it tends to get snagged in luggage zippers.

See you out on the water (or wherever else your adventures take you).

HH Ambassador

Lightweight, but well-insulated