Roces Idea Free Review: Sizing, Fit and Verdict
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The quick verdict: A kids' ski boot that expands across six sizes with a heel lever, potentially covering three winters of foot growth for the price of one ordinary pair. ~$200 list, typically ~$130 to 190 on sale
Overview
The Idea Free attacks the worst economics in family skiing: boots that fit in December and pinch by March. A lever in the heel expands both shell and liner from mondo 22.5 to 25.5, the equivalent of six junior sizes, with the liner adapting to keep the fit reasonable at each setting. Entry is designed to be easy for kids to manage themselves, and a power strap adds support as they get faster. The smaller Idea Up covers mondo 19.0-22.0 for younger skiers.
Where It Shines
- One purchase can genuinely span three seasons of growth
- Kids can get in and out without a parent wrestling the shell
- Resale value holds up because the size range fits so many feet
- Costs about the same as a fixed-size boot that lasts one winter
Tradeoffs to Know
- Flex and precision trail a proper fixed-size race or performance boot
- At the extremes of the size range the fit is workable rather than ideal
- Strong young racers will want a conventional boot sooner
Who It’s For
Growing recreational skiers from roughly age 10 up (Roces’ own guidance), younger if the foot already measures 22.5cm, and any family doing the math on three kids' worth of boots. Skip it only if your kid is racing gates or has stopped growing, in which case a fitted single-size boot serves better.
Key Specs and Sizes
Figures are approximate and drawn from Roces’ published product pages (via roces.com) and retailer listings at evo and Backcountry. Roces sells the Idea in three shells, and the Idea Free is the largest of them.
| Spec | Detail |
|---|---|
| Idea Free shell | Mondo 22.5-25.5 (EU 35.5-40), six size positions, Roces suggests ages 10 and up |
| Idea Up, mid shell | Mondo 19.0-22.0 (EU 30-35), roughly ages 5 to 10 |
| Idea Up, small shell | Mondo 16.0-18.5 (EU 24-29), roughly ages 2 to 5 |
| Adjustment | Patented 6-in-1 system: rear heel lever for length, cuff-height compensator, two-position upper buckle rack for width |
| Flex | Soft (no numeric rating published), beginner to intermediate |
| Last | Youth fit, about 102mm per Backcountry’s listing |
| Buckles | Three micro-adjustable aluminum and polycarbonate buckles per evo (Backcountry lists two), plus a power strap |
| Shell | Polypropylene with a semi-soft self-settling shell wrap that keeps snow out of the mechanism |
| Liner | Velvet-lined comfort liner with Lycra easy-entry panel, self-positioning tongue and slow-recovery memory foam padding |
| Sole norm | Alpine ISO 5355 (junior), no walk mode, no tech fittings |
| Weight | Not published by Roces or retailers |
| Colors | Black/Lime, White/Deep Pink, White/Blue/Black, Black/White/Red, White/Red/Black, Pink/White |
Every Idea shell shares the same polypropylene construction, the same growth compensators and a one-year limited warranty at US retailers. The trick is the rear lever: open it, turn it to the size you want, close it, and the heel section of both shell and liner shifts so the boot lengthens in half-size steps. Roces doesn’t publish how far the sole length moves per notch, so treat every size change as a trip to the shop to re-check the binding. US list price is roughly $200, with autumn 2026 selling prices of about $130 to 190 depending on retailer and color; older seasons’ stock has cleared out for under $100 at times.
Sizing and Fit
Measure the foot in centimeters, heel to longest toe, and treat that number as the mondo size. The Idea Free fits a foot from 22.5cm to 25.5cm, roughly a US youth 4.5 up to a men’s 7.5 in street shoes. The sweet spot is to buy in at 22.5 to 23.5cm, so the kid starts near the small end with two or three winters of adjustment left. If the foot already measures 25cm you are paying for one notch of growth, and a fixed-size junior boot will fit better for the same money.
Set the shell exactly to size rather than a notch long; the memory foam packs down after a few days and the fit relaxes on its own. The two-position buckle rack adds a little width for a chubbier foot, but this is a youth last around 102mm, so a genuinely wide foot will feel the shell before it feels the liner. The soft flex suits junior skis and any junior alpine binding, since the ISO 5355 sole is the standard norm; it won’t work with GripWalk-only bindings or touring setups. Below mondo 22.5, step down to the Roces Idea Up, which runs 19.0 to 22.0 in the same system. There is no adult version; above 25.5 the line stops.
Who Should Skip It
Skip the Idea Free if your kid has stopped growing or is racing gates; a soft adjustable shell gives up the precision of a fixed-size junior race boot. Skip it if the foot is already at 25cm, since you would barely use the growth mechanism. And skip it if the real problem is elsewhere in the kit: a helmet like the Smith Glide Jr. MIPS matters more to a nervous first-timer than any boot, warm hands in the Hestra Heli Ski Jr. Mitt keep more kids on the hill past 2pm, and a proper pair of Smartwool Kids’ Wintersport OTC socks fixes half the fit complaints parents blame on the boot.
Idea Free vs. Smith Glide Jr. vs. Hestra Heli Jr.
These are the boots, helmet and mitts from our kids’ guide, so the comparison is really about where to spend first. The Smith Glide Jr. MIPS runs about $110 and is the one item you never buy used; its dial fit stretches across a couple of seasons much as the Idea Free does for feet. The Hestra Heli Ski Jr. Mitt costs roughly $140, more than the boot on a good sale, but it gets handed down. The Idea Free, at about $200 list and $130 to 190 on sale, is the priciest of the three at list but the cheapest per season once a kid grows through it. Pick the Glide Jr. first if the budget covers one item this year, because rental boots exist and rental helmets are grim. Pick the Heli Jr. if your kid already quits early with cold hands. Pick the Idea Free if the foot measures 22.5 to 23.5cm right now and you are tired of buying boots every December.
Frequently Asked Questions
What size Roces Idea Free should I buy?
There is only one shell, mondo 22.5 to 25.5, so the question is whether the foot fits inside that range. Measure in centimeters; a foot of 22.5 to 23.5cm gets the most seasons out of it, and anything under 22.5cm needs the Idea Up instead.
Is the Roces Idea Free good for beginners?
Yes. The flex is soft, the Lycra easy-entry panel lets kids get in and out on their own, and the memory-foam liner is forgiving. Roces and retailers aim it at beginner to intermediate skiers, not racers.
Roces Idea Free or Idea Up?
Pick by foot length, not age. The Idea Up covers mondo 19.0 to 22.0; the Idea Free picks up at 22.5 and runs to 25.5. A foot right at 22cm still belongs in the Idea Up; move to the Free once it reaches 22.5cm.
Does the Roces Idea Free work with any ski binding?
It has a standard alpine ISO 5355 junior sole, so it fits any junior or adult alpine binding set to that norm. Have a shop re-check the binding’s forward pressure and release setting each time you change the size, since the boot gets longer and the child gets heavier.
How It Compares
See how it stacks up in our full guide: The Best Kids' Ski Gear of 2026/27. Other picks from that list: Smith Glide Jr. MIPS · Smith Snowday · Patagonia Kids' Powder Town Jacket · Hestra Heli Ski Jr. Mitt · Smartwool Kids' Wintersport OTC.