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Key feature
Technical footwear that conforms to the size of the child's foot. Its inflatable system modulates the volume of the liner and covers 4 foot sizes. Footwear that you can keep for 2 seasons!
Users reviews
4.57 / 5 14 ratings

User benefits

The footwear that grows with your child: 1 pair of boots covering 4 sizes.
Ease of use
2 adjustment buckles for excellent support. Ideal when learning.
Flex 40, soft enough to be tolerant and quite rigid, ideal when learning.
Anatomic design
It just takes a few pumps to adjust to fit the child's shoe size.

Technical information

16,5 -18,5 18,5 - 20,5
40 Junior
2 notched buckles
Upper of : 100.0% Polypropylene (PP) Lining and sock of : 100.0% Polyester (PES) Outer sole of : 100.0% Polypropylene (PP)
2 years


Storage instructions
Store in a dry place, preferably in a ski boot bag. Close buckles to keep shell from warping. Do not store next to a heat source.

Features of the product

A word from the product manager
This is Wed'ze's first children's ski boot with adjustable sizing. We have looked for the best compromise between foot support and comfort so that young skiers can totally concentrate on learning to ski without the risk of wearing poor fitting ski shoes.
Opening/closing system
The 2-buckle 4-position enable accurate and rapid adjustment. The inflatable system offers good foot support in the shoe. It is recommended that the liner is inflated before closing the buckles in order to obtain the best possible support.
Our liners are made with phthalate-free plastics.
What is flex?
To provide an indication of rigidity, brands assign a flex rating to every boot. This number determines the rigidity of the ensemble: the higher the figure, the stiffer the shell. A flex of 40 is considered ideal for helping children to improve.
How do you try on ski boots?
Once your foot is in the boot, fasten the buckles to the midpoint. If you can fasten any more, this means the boot is the wrong size. Once you've fastened the boot, you need to flex 3 times while pushing your calves forward (put your hands on your knees to help you), which will push your heel back into the boot. When standing upright, your foot should touch the end of the shell. When you flex, your foot should move backwards so you can no longer feel the end.
How do you adjust your Pumzi boot?
1/ Put the boot on the child. 2/ Inflate the adjustment system by pressing the "plus" (+) button 20 times. 3/ Fasten buckle from the bottom to half-way up (2nd or 3rd buckle), then tighten the top buckle as needed. 4/ Ask your child how it feels: if it's OK, then you're ready to ski. If it feels too tight, you can loosen it by pressing briefly on the "minus" (-) button. You can repeat the process 3 times.
Tip for putting boots on
To put boots on more easily, pull the tongue towards the exterior (not straight in front of you), so you open the shells as much as possible which makes putting your foot in easier.

Users reviews

4.57 / 5 14 ratings
13 users recommended this product
Distribution of the scores

At Decathlon, reviews are reliable.

  • Woman
    +60 years old
    23 October 2017
    Use since 1 week or less
    That review has been deposited on this product version
    Cheaper to buy

    Skiing more than 1 week a year make these boots a cheaper, and better, option for growing children

  • Man
    40-49 years old
    27 February 2018
    Use since 1 week or less
    That review has been deposited on this product version
    Gutes Preis/Leistungsverhältnis

    Idealer Schuh für Kinder, da diese noch wachsen und der Schuh perfekt durch das Luftpolster im Zehen/Oberfussbereich anpassbar sind. Schuh hat diesen Winter seinen Zweck voll erfüllt, ganz klare Empfehlung.
    PS: Wir hatten verstellbare Schuhe von Roces getestet, diese waren überhaupt nix....

  • Man
    30-39 years old
    24 February 2018
    Use since More than 1 year
    That review has been deposited on this product version
    A fecha de hoy una de las botas no infla.

    Una de las botas del niño no infla sin poder saber desde cuando ocurre puesto que la opinión del niño no es muy fiable cuando se la inflaba. Me he percatado hoy tras sacar la parte interior.

    Brand's answer :

    Hola José Carlos,

    lamentamos esta experiencia con el producto. Te aconsejamos que te acerques a tu tienda más cercana para poder ayudarte a resolver el problema lo antes posible.

    Gracias por contactar con nosotros.

    Juanjo Moya
    Monitor País deportes de nieve.