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Helly Hansen
Alpha 4.0 Jacket - Men's

5 out of 5 stars
2 Reviews
Current price: $380.00 Original price: $475.00
20% off


Size Chart


Why We Like The Helly Hansen Alpha 4.0 Jacket

Fully features snow jackets are a must have in deep winter on the mountain. The Helly Hansen Alpha 4.0 Jacket is our go-to jacket that has everything we need to keep us comfortable as we spend the day shredding the slopes. Helly Tech Professional 2-layer fabric is waterproof and breathable to keep us dry and comfortable in the snow, and Primaloft Black Eco recycled synthetic insulation covers us with eco-friendly warmth that was an impressive warmth-to-weight ratio. A helmet-compatible, removable hood allows us to increase our coverage when it starts to storm, and an adjustable powder skirt keeps the snow form coming in under our jacket when we take a spill. Multiple zippered pocket keep our essentials secure and safe as we are riding, and a PrimaLoft Aerogel Pocket is an innovative touch that keeps our phone warm in frigid conditions to preserve our battery life.


  • Fully features ski/snowboard jacket with everything we need
  • Helly Tech Professional 2-layer fabric keeps us dry and comfortable
  • Primaloft Black Eco synthetic recycled insulation keeps us warm
  • Adjustable and removable, helmet-compatible hood covers us up in storms
  • Adjustable powder skirt keeps the snow our of our jacket
  • Multiple zippered pockets keep our essentials safe
  • Aerogel phone pocket keeps our phone warm to preserve our battery life
  • RECCO reflector helps our rescue chances in emergency situations
  • Item #HYHZ89F
Responsible Collection
Recycled/Repurposed, Bluesign APPROVED
Helly Tech Professional (85% nylon, 15% elastane)(2-layer), DWR treatment, [lining] 86% recycled polyester, 14% elastane, [lining 2] 100% recycled polyester
PrimaLoft Black Eco (100% recycled polyester)
adjustable, removable
2 zippered hand, 2 zippered chest, ski pass, LIFE POCKET Aerogel phone pocket
H2Flow system underarm
Powder Skirt
Claimed Weight
2lb 8.6oz (1150g)
ski, snowboard
Manufacturer Warranty
limited lifetime

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 2 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

February 24, 2024

Very good jacket - slim fit

I've used it several times
Size Bought:
5' 9"

This is a slim jacket that still kept me very warm. Had to keep on wearing less under it, until I only wore my base layer. It does fit very snug. I do think the special insulated pocket kept my phone battery from draining as fast. Overall, am satisfied.

Dan D
5 out of 5 stars

January 24, 2024

Outstanding resort ski jacket / a

Got this for resort skiing in winter ‘23-24. Very happy with this purchase. I had been debating between a technical ski shell or this, very glad I chose this option. The fabric is stretchy, which makes it much more comfortable than a typical shell, and has no associated crinkle with movement. The interior liner is very soft, and I’ve frequently worn just a t shirt underneath in milder (>25 degree) weather comfortably when walking around town. I skied with it in Vail in a -25 F windchill, was perfectly warm with a heavy baselayer and mid-weight midlayer. Similarly comfortable in heavy wet snow at +30 F with only a light base layer and vents open. I had been concerned about the waterproofing material compared to a GoreTex 3L option, but this was a non-issue; Sitting on the chairlift in heavy wet snow my shell pants soaked through, but there wasn’t a spot on this jacket. The hood works well over a helmet or without a helmet, though the removable nature makes it flare a little at the cheeks compared to an integrated non-removable option. This isn’t an issue except in sub-zero windchills. Nice to be able to remove it as well.

Ryan H