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Adult Stream 550 S2 black ski and snowboard helmet.

Ref :
Key feature
This helmet, with a visor, will protect your head and eyes. The visor has a dual anti-UV and anti-fogging lens for use in all weather (category S2). Helmet that is suitable for those who wear glasses.
Users reviews
3.72 / 5 107 ratings


ABS outer shell / EPS skullcap : Good head protection. It is strongly recommended that you wear a helmet to protect you when skiing on snow-covered slopes.

The ABS outer shell and EPS skullcap makes the helmet solid, strengthening it against impact. Standard NF EN 1077: European standard applicable to helmets used to protect the head when downhill skiing or snowboarding.


Warmth: Protect yourself from the cols. Stay warm thanks to the“ FOAM, COLD BARRIER and EAR PAD” combo

Air cooling system: Expel humidity! The humidity and heat of your ski helmet is expelled outwards thanks to the air directional control system: "AIR COOLING SYSTEM"


S2 dual lens:
Good eye protection. At altitude and in the snow, protecting your eyes on the ski slopes is vital.

Those with glasses, ski in comfort! It is finally possible to comfortably wear your glasses.

Wide field of vision:
No longer any need for the mask frame and a greater field of vision, the visor offers novel visibility!

Simple to use

Rapid / easyfit buckle:
Simple to use. Adjust and easily fit your helmet then fasten it using one hand before hurtling down the ski slopes!

A clever magnetic buckle allows you to fasten your helmet using just one hand

User benefits

Adjustable rear support elastic. Rigid earpieces + neck contour at the rear
12 holes guarantee you good aeration and good perspiration wicking.
Greater weight than the average of our helmets. 750 g in Size L.
Impact protection
Complies with standard EN 1077. Rigid ears. ABS outer shell = resistant.
Easy maintenance
The internal lining of the helmet is removable and machine-washable at 30°C.
Inner hat with turndown for keeping the forehead warm. Thick lining.
Sun protection
UV resistant, anti-fog, all-weather visor (category s2)
A bad weather visor (S1) is available for sale online.

Technical information

Upper Part - Main Fabric : 70.0% Acrylonitrile butadiene styrene (ABS), Upper Part - Main Fabric : 30.0% Polyurethane (PU) Inside Shell - Main Lining : 100.0% Polystyrene (EPS) - Expanded
Approved by
All our helmets are certified by an external approved laboratory.
All Wed'ze products are tested under the real conditions of use for which they were designed: in the snow and cold and under all the conditions you may encounter when skiing. The design teams, product managers, engineers and designers make sure that the programme for which the product has been designed and developed is perfectly suited for its use in the field.
Designed to :
skiers or snowboarders looking for a helmet with good coverage that also protects the eyes.
2 years


Care instructions
Hand wash the external parts with a sponge and soap and machine wash the fabric at 30°C. Wipe the lens with the Wed'ze bag provided in order to avoid any scratches.
Storage instructions
Dry thoroughly before storing in its Wed'ze bag. Always carry your helmet in its bag to avoid scratching the lens.
Restrictions for use
Replace any helmet that has sustained an impact.

Features of the product

Easy Fit
The Easy Fit system allows you to adjust your ski helmet to your body shape, thanks to a dial at the back of the helmet retained by elastics. This support system allows for precise adjustment and remembers the position of the helmet on your head.
Full Earpad
The Full Earpad is an ear design that offers better support, more warmth and therefore more comfortable to use. The two ears are made of a single textile piece, thus forming a contour around the neck.
Air Cooling
Air Cooling is a directional control system for air, which evacuates heat and moisture from your ski helmet. It has 12 air vents to ensure day-long comfort.
Hard Shell Construction
The Hard Shell Construction gives more durability and robustness to your helmet. This type of structure incorporates an external ABS casing, molded by injection to resist powerful impacts. It combines durability with a significant capacity to withstand bumps and blows. The internal EPOS skullcap absorbs impact and collision at the time of impact. We recommend you change your ski helmet at the most every 5 years if it has not undergone significant collision in the meantime.
Compatibility with prescription glasses
Everyone should be able to enjoy skiing, including people who wear glasses. Wed'ze therefore offers a helmet with a visor, more practical than ski goggles over glasses (OTG). Some models of glasses remain unsuitable, however, on account of their size. We recommend visiting your local Decathlon store to try the helmet on with your glasses.
Cold barrier
The 'COLD BARRIER' provides a genuine thermal barrier which offers protection from the cold when the hat hem is folded down over the forehead.
Removable textile
The removable inner part can be washed. The inner cap of this ski helmet is detachable and machine washable at 30°C.
S2 Visor Lens
The visor offers 100% protection from ultraviolet rays. The tint used is suitable for all types of weather and conditions, letting through only between 40% and 22% of light. The polycarbonate material is very resistant to impact. however not very resistant to scratching: We therefore recommend protecting your visor by placing it in its cover after each use.
EN 1077 standard
The EN 1077 standard is a European standard that applies to helmets used for skull protection when downhill skiing or snowboarding. A feature of this standard are the tests undertaken to check the shock absorption properties and the resistance to penetration.
After-sales service
Some STREAM 550 S2 helmet parts are available as part of our after-sales service from in-store workshops. Available in: the original S2 type visor and the visor attachment kit (screws and spacers).

Users reviews

3.72 / 5 107 ratings
78 users recommended this product
Distribution of the scores

At Decathlon, reviews are reliable.

  • Man
    40-49 years old
    12 April 2018
    Use since 1 week or less
    That review has been deposited on this product version
    Great helmet when worn in correct conditions

    Brought this helmet based upon looks not the reviews. Having read the reviews after the purchase I believed I had made an error and went and brought another helmet with separate goggles to take on holiday with me.
    The marketing of this product could be better as it does not specify on the website what conditions this helmet is suitable to be used in, however on the packaging it clearly states sunny or overcast conditions, therefore I assumed as per the reviews it would not be suitable in the snow or rain.
    When used I found this helmet to be of an excellent quality and it was used in both sunny and overcast conditions with no issues noted.
    Would definitely recommend.

  • Man
    50-59 years old
    06 March 2018
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Replacement/ Bad weather Visor

    Does anyone know where I can buy a replacement visor and a Bad weather visor for the 550 stream 2 helmet? Everywhere seems to be out of stock.

  • Woman
    +60 years old
    17 January 2018
    Use since 2 to 8 weeks
    That review has been deposited on this product version
    Love the helmet but not when snowing.

    My sister and I have loved wearing our helmets. We had constant problems wearing regular OTG goggles and reckoned we had finally found our be all and end all helmets. The one failing is letting in snow at the top. It is impossible to ski with snow filling up the visor. It’s also too difficult clearing it out. If only there was a clip at the back to put regular goggles on. I noticed a previous review where duct tape was used to attach regular goggles for same problem. Wish I had duct tape with me! So I would recommend for all round visibility in good weather or flat light but not when snowing.