5,000mm is adequate for light snow and fair-weather resort days, which covers many families' typical use. However, if you ski in wet climates (Pacific Northwest, Northeast ice coast), take multi-day trips, or have a child in full-day ski school that runs regardless of conditions, aim for 8,000–10,000mm. The upgrade cost is usually $20–$40 and significantly improves comfort in heavier precipitation.
Snow Jacket · Kids / Youth Snow Jacket
Is a 5,000mm waterproof rating sufficient for a kids' snow jacket?
Related gear types
If this answer nudged you toward a different style, these guides compare specs and trade-offs.

Insulated Snow Jacket
$120 – $650
All-in-one snow jacket with built-in insulation for warmth in cold resort conditions.
Integrated insulationWaterproof-breathable membraneAdjustable hood

3-in-1 System Snow Jacket
$130 – $500
Modular jacket system with a zip-out insulated liner and waterproof outer shell worn together or separately.
Removable insulated linerZip-together systemVersatile three-season use
More questions
- How much bigger should I buy a youth snow jacket to allow for growth?
- Should I buy a shell or insulated jacket for my child?
- At what age should a child switch from a one-piece snow suit to a separate jacket and pants?
- How can I tell if a youth jacket's growth features actually work?
