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RAYVE Lahti kids' barefoot winter boots in pink and gold, with a leather upper, waterproof membrane and velcro that your child can fasten alone. EU 23-36, inner length 152-236 mm.
I chose the RAYVE LAHTI boots for my youngest son to wear at nursery and they passed with flying colours: grass, woods, tarmac and damp autumn weather. The sheep wool lining keeps his feet warm without sweating, and the water-resistant membrane copes with wet conditions. They fit his wider foot and higher instep, and thanks to the velcro he puts them on all by himself at nursery. They also look really stylish, so I'm already considering them for my two older children. I would definitely recommend them to all parents looking for comfortable winter boots for an active child.
5 out of 5
Lenka Dolenská
mother of three, author of the Instagram profile monte_sorry_aktivity
The RAYVE LAHTI insulated winter ankle boot comes in a pink and gold combination of smooth and nubuck leather. It is designed for your child's everyday wear in town, at nursery, in the park and on lighter terrain. Under the foot there is a 4 mm rubber outsole and a 1 mm insole, with the heel and toe at the same height. Inside is a full lining of 100% natural organic certified sheep wool and a TEX waterproof membrane.
Who they are not for
Four millimetres of rubber and a millimetre of insole mean your child feels the ground through the sole: kerbs, roots and frozen lumps of snow. Winter boots with a thick, cushioned foam layer do not allow this, whereas here the feedback from the surface is preserved.
The sole is flexible and bends with the foot when pushing off and when climbing on a climbing frame. The heel has nothing extra, with zero drop (0 mm), so the foot lands flat on the pavement and your child does not tip forwards in the boot.
The heel counter is slightly reinforced, so the heel stays in place, but the foot is not locked in. The high cut over the ankle gives more support in snow than a low boot, yet the ankle can still move normally.
| Parameter | Value | What it means in practice |
|---|---|---|
| Drop | 0 mm | heel and toe at the same height, no forward tilt |
| Sole height without insole | 4 mm | your child feels the surface underfoot, while the rubber protects against sharp stones |
| Insole thickness | 1 mm | a thin extra layer that does not cushion or take up space |
| Insulation | Sheep wool fleece, 100% natural organic certified wool (OEKO-TEX STANDARD 100) | keeps feet warm even when standing outside, and wool copes with a sweaty foot better than synthetics |
| Membrane | TEX waterproof membrane | wet snow and puddles on the way are no problem, but allow for regular waterproofing treatment |
| Fastening | Velcro (hook-and-loop) | two straps, your child can tighten them alone at nursery |
| Heel counter firmness | Slightly reinforced | the heel stays in place while the ankle remains free |
| Inner width | 70 to 88 mm depending on size | fits wider feet too, narrow feet may find the boot loose |
| Removable insole | no | the whole boot has to be dried, but your own orthopaedic insoles can be placed in the boot |
| Size range | EU 23 to 36 (UK 6-3) | from nursery-age feet to older schoolchildren |

Trace your child's foot on paper while standing, ideally in the afternoon when the foot is at its largest. Measure the distance from the heel to the longest toe, which need not be the big toe. Add an allowance of 7 to 12 mm to the measured length and look for the result in the boot's inner length, not the EU size. Inner lengths run from 152 mm in size 23 to 236 mm in size 36, with widths from 70 to 88 mm.
Bear in mind that the wool fleece inside takes up some space and flattens over time. The cut is built for a medium instep and medium ankle, and suits wider feet better than narrow ones. If you are unsure, use the Premium Barefoot measuring tool at home to avoid being off by a whole size.
Measured on the insoles of each size. Choose the size where the inner length is 7 - 12 mm longer than the foot.
| Size | Inner length | Inner width |
|---|---|---|
| 23 | 152 mm | 70 mm |
| 24 | 155 mm | 70 mm |
| 25 | 162 mm | 72 mm |
| 26 | 167 mm | 73 mm |
| 27 | 175 mm | 76 mm |
| 28 | 180 mm | 77 mm |
| 29 | 189 mm | 77 mm |
| 30 | 197 mm | 78 mm |
| 31 | 200 mm | 79 mm |
| 32 | 212 mm | 80 mm |
| 33 | 216 mm | 81 mm |
| 34 | 225 mm | 83 mm |
| 35 | 230 mm | 84 mm |
| 36 | 236 mm | 88 mm |
Are they warm enough for frosty weather?
The lining of 100% natural organic certified sheep wool holds warmth even on frosty days. If your child stands still for a long time, a wool sock will help.
How do they cope with wet snow and slush?
Inside is a TEX waterproof membrane that stops moisture getting in. Keep up water resistance by regularly treating the boots with a spray suitable for membranes.
Can my child put them on alone?
Two velcro straps and a heel loop mean even children at nursery can manage it.
Can we put our own orthopaedic insoles in the boots?
Yes, the model is suitable for insoles. However, the insole cannot be removed, so the insert goes on top and takes up space in length and height. Bear this in mind when choosing the size.
What allowance should I add?
7 to 12 mm added to the measured foot length.
If your child has so far worn shoes with a raised heel and cushioned sole, let them walk in the LAHTI for shorter outings at first and gradually extend the time until they wear them all day at nursery. The calves and Achilles tendons get a different job than before. If your child complains of pain that does not ease by the next day, put the boots aside for a while and consult a physiotherapist or podiatrist.
Brush off coarse dirt, wipe the boots with a damp cloth and let them dry at room temperature, never near a heater. Use Collonil Nubuk Box Classic on the nubuck parts, and nourish smooth leather with JPwax natural beeswax waterproofing. Waterproof regularly, and use COLLONIL CARBON COMPLETE 125 ml on all materials, including the membrane.
Collonil Nubuk Box Classic - cleaning block for nubuck
Cleaning for nubuck
COLLONIL CARBON COMPLETE cleans and waterproofs all materials 125 ml
Waterproofing, universal and suitable for nubuck
PFAS-free waterproofing spray for all types of footwear - COLLONIL CARBON PRO 400 ml
Mechanical cleaning brush for all types of nubuck - COLLONIL
Nourishing grease for leather footwear - COLLONIL LEDERFETT 150 ml

| Materials | Brushed leather, Smooth leather |
| Flexibility | flexible |
| Fastening | Velcro |
| Heel counter stiffness | Lightly reinforced |
| Instep height | Medium |
| Shoe height | High |
| Ankle shape | Medium |
| Foot width | Medium Wide, Medium, Wide |
| Season | Autumn, Winter |
| Membrane | Water Resistance | With membrane |
| Upper | Skin, smooth skin, brushed leather |
| Lining and Insole | Other |
| Membrane | yes |
| Season | Autumn, Winter |
| Gender | Children's, Girls, Boys |
| Colors | Gold, Light Pink |

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