K2 Stash Snow Helmet - Unisex 5043-521
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K2 Stash Snow Helmet - Unisex

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Show Description

Cover your cranium with a ski and cycling approved helmet. The convertible full-wrap liner allows toque layering, and the 360 fit system tunes in comfort. The Magna-Snap goggle clip uses magnets for easy attachment. And a passive ventilation system moves moisture to stop you from overheating when ripping in sunshine.

  • Molded polycarbonate shell offers lightweight performance.
  • Expanded polystyrene inner.
  • Passive Channel Ventilation System moves air to push moisture and warm air out.
  • K2 Dialed Fit system features 360 dial that locks into a web construction for maximum comfort, eliminating pressure points.
  • Magna-Snap goggle clip has a magnetic strap for easy lens attachment.
  • Convertible full wrap washable liner.
  • Crown mesh wicks moisture and breathes to prevent overheating.

Tech specs

Show Tech specs
Weight 380g (Medium)
Ideal for
  • Downhill skiing
  • Snowboarding
  • Backcountry skiing

Microshell helmets are made of a thin polymer sheet over a foam liner; Hardshell helmets have a hard polymer outer shell and a foam liner; when the liner is being bonded to the outer shell during the manufacturing process, it is Molded in the shell.

Molded in the shell
Shell material Polycarbonate
Fit system Adjustable dial
Inner material EPS (expanded polystyrene)

The internal circumference determines the size head that the helmet will fit.

  • 51-55cm (Small)
  • 55-59cm (Medium)
  • 59-62cm (Large/X-Large)
Vents Yes
Goggle clip Yes
Removable ear liners Yes
Approved for

Most helmets are tested and certified for a specific sport. Some helmets are approved for multi-sports, but only after passing the safety tests for both sports (i.e., snowsports and cycling).

  • Snowsports
  • Cycling
Safety rating

Cetification is established by a variety of governing bodies who set impact standards. Most helmets are certified or approved for a specific sport, except in the case of multi-sport helmets (i.e., a snowsports helmet might also be approved for cycling if it meets the cycling safety standards).

  • ASTM F2040
  • CPSC 16 CFR 1203
  • EN 1077: 2007
  • EN 1078: 2012
Made in China