Renting adult equipment in Xinjiang is straightforward. Children’s gear is where family trips quietly go wrong, and almost always for the same reason: nobody arrived at the counter with the right numbers, so a child ends up in boots two sizes too big, on skis that are too long, with a helmet that only fits over a woolly hat. In a place where the base area can sit at minus twenty-five, a fitting error stops being a performance problem and becomes a warmth problem within an hour. This guide is about sizing alone — lengths, Mondopoint, junior release settings, head circumference and how small bodies lose heat. Lessons, kids’ camps and supervised play are covered in our overview of childcare and kids’ programmes at Xinjiang resorts, and the wider family planning picture sits in our guide to skiing in Xinjiang with kids.
Bring four numbers, not four sentences
The single most useful thing you can do happens at home, before the flight. Measure your child and write four figures in a phone note:
- Height in centimetres — this sets ski length.
- Weight in kilograms — this sets the binding release value and matters more than height for ski flex.
- Foot length in centimetres, measured standing on paper with the heel against a wall. Measure both feet and use the larger.
- Head circumference in centimetres, taken about two centimetres above the eyebrows.
Digits are language-neutral. A rental technician in Altay who speaks no English reads “132 / 28 / 21.5 / 53” instantly and correctly, and the entire fitting conversation disappears. Add the child’s age, because junior binding charts use it. Measure at home in a quiet room, not at a counter with a queue behind you and a child already in a snowsuit.
Boots: Mondopoint is the easy part
Chinese rental shops label boots in Mondopoint, which is simply the length of the foot in centimetres. A boot marked 22.5 fits a 22.5-centimetre foot. Parents who think in UK, US or EU children’s shoe sizes should ignore conversion charts entirely — they disagree with each other, while a tape measure does not.
Check the fit before you leave the shop. With the boot buckled and the child standing upright, the toes should brush the front; when they bend their knees into a skiing stance, the toes should pull back clear. Slide a finger behind the heel while they lean forward: snug, not gaping. If the heel visibly lifts inside the shell, the boot is too big. One thin sock only, pulled smooth with no fold at the shin, and nothing else inside the boot.
Ask for boots that have been indoors. Rental boots stored in an unheated back room start the day at ambient temperature, and a frozen liner takes a long time to warm around a small foot. The same principles that apply to adults are covered in more depth in our ski boot fitting guide.
Never size up for growth
It is the most tempting shortcut and the one that ends trips. A boot one or two sizes too large does three things at once. The child loses all edge control, so the skiing feels random and frightening. The shin slams the tongue on every turn, which hurts. And the foot has to grip constantly inside a shell full of air gaps, which is the fastest route to cold feet on the mountain.
That last point is the Xinjiang-specific one. At minus twenty-five in the Altay, a loose boot moves from being a comfort issue to a genuine frostnip risk, and it is the single most common reason a family’s ski day ends before eleven in the morning. Two pairs of socks make it worse rather than better: they compress the liner insulation and restrict circulation. If a child sits between two sizes, take the smaller shell and loosen the buckles rather than the larger shell and tighten them.
Skis and poles: length by height, flex by weight
For a first-timer, the ski tips should reach somewhere between the chin and the nose when the ski is stood upright beside the child. A confident child who is already linking turns can go up to nose or eyebrow height. Shorter skis turn more easily and are far less discouraging in week one.
Useful starting points against a rental rack that steps in five- or ten-centimetre increments:
- Child around 100 cm tall: skis of roughly 80 to 90 cm.
- Child around 120 cm tall: skis of roughly 95 to 105 cm.
- Child around 140 cm tall: skis of roughly 115 to 125 cm.
Weight matters more than height for how the ski behaves. A heavy eight-year-old will over-bend a soft junior ski, while a very light child cannot bend it at all, which is why you hand over the kilogram figure as well as the height. Poles are optional and usually unhelpful for beginners or any child under about eight; when they are used, the elbow should sit at ninety degrees with the tip on the floor.
Bindings and release settings for a twenty-kilo skier
Light children fall off the bottom of adult release charts. Junior bindings run from about 0.5 to 4.5, and the setting is calculated from weight, height, age, boot sole length in millimetres and skier type — not from the ski.
Rental technicians in China work quickly from a laminated chart, and they frequently do not ask for the child’s weight. Volunteer it, written down, along with the boot sole length printed on the heel of the boot. If the shop mounts a child on an adult ski whose binding will not go below a setting of three, that is the wrong ski and you should ask for junior equipment. A binding set too high simply will not release in the slow twisting fall that beginners actually have, which is the fall that hurts knees. When boots are swapped, ask the technician to re-check the forward pressure before you take the skis away.
Helmets, goggles, and what to buy rather than rent
Junior helmets are sold and stocked by head circumference, typically S at 48 to 52 centimetres and M at 52 to 55. The fit should be snug on bare hair or over a thin balaclava — never over a woolly hat, which is a sizing error rather than an extra layer. The front rim should sit just above the goggle frame, because the gap between helmet and goggles is a classic frostnip spot in Xinjiang cold. Rental helmets are usually bundled with the gear; the smallest shells run out first at smaller resorts. Our notes on helmets and safety gear at Xinjiang resorts cover standards and condition checks.
For a one-week trip, rent the bulky items and buy only what has to fit a specific small face and small hands:
- Rent: skis, boots, poles and helmet. Daily rates for children are typically modest, and our equipment rental guide covers what to expect at the counter.
- Buy: goggles in a genuine junior size, because adult frames do not seal on a small face and the resulting gap fogs and then freezes; mittens rather than gloves; merino or synthetic base layers; a neck tube; and at least one spare pair of ski socks.
Keeping a small body warm at minus twenty-five
Children lose heat faster than adults because of their surface-area-to-mass ratio, and they under-report cold until it is well advanced. Do not wait to be told. Check cheeks and ask specifically about fingers and toes on every lift ride.
- Mittens beat gloves at these temperatures, every time.
- A one-piece suit for under-eights removes the waist gap that fills with snow on the magic carpet.
- No cotton anywhere, including socks and underwear.
- Hand warmers go on the back of the hand, not in the palm where they are squeezed.
- Plan two ninety-minute sessions with a long indoor break at midday rather than one long day.
- Carry spare mittens and socks in the bag. A wet pair at minus twenty ends the afternoon.
Finally, mark everything the moment you leave the rental counter. Children’s boots and skis are the items most often mixed up on a busy day, and our guide to lost gear and theft prevention explains the thirty-second habits that keep a family’s kit together.
Frequently Asked Questions
What length skis does my child need?
Stand the ski beside them: for a first-timer the tips should reach between the chin and the nose, and for a child already linking turns, up to nose or eyebrow height. When the rental rack only offers five-centimetre steps, take the shorter option in the first week.
How do I give my child’s boot size at a Chinese rental shop?
Use Mondopoint, which is the foot length in centimetres. Measure the foot at home standing against a wall, use the larger foot, and write the number down. A boot marked 22.5 fits a 22.5-centimetre foot, and no conversion chart is needed.
Should I rent boots a size bigger so they last the week?
No. An oversized boot removes edge control, bangs the shin and, more importantly in Xinjiang cold, leaves air gaps that make feet cold within an hour. If your child is between sizes, take the smaller shell and loosen the buckles.
Can I rent gear for a four-year-old in Xinjiang?
At the larger resorts, usually yes, though the very smallest boots and helmets are limited in number and go early on busy days. At small local hills, stock for under-fives is thin or absent. Ask before you book, and arrive early on your first morning.
Is it worth buying kids’ gear for a one-week trip?
Rarely, unless the child also skis at home. Rent the skis, boots, poles and helmet, and spend your money on the items that must fit properly: junior goggles, mittens, base layers and spare socks.