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Reima Uumaja Jacket - Light Heather
(Product No.: FI-5100340A-4250)
NEW
Meet our junior jacket Uumaja, expertly crafted for young explorers. This Reima jacket boasts light insulation and is made from a waterproof, windproof, and breathable material to help keep your child comfortable in all conditions. The 100% recycled insulation ensures warmth, while the safe, detachable hood adds versatility. The jacket also features elastic cuffs for a snug fit and two zip pockets for storing treasures. With Uumaja, outdoor adventures have never been so cozy and fun!
- Water- and windproof, breathable, dirt-repellent material
- Safe, detachable hood
- Elastic cuffs
- Two zip pockets
- Water column > 10 000 mm
- Light insulation
- Breathability > 7 000 g/m2/24 h
- Water and dirt repellent
- Windproof
Material: 100% polyester, polyurethane lamination
Care
- Normal machine wash at warm (40°C).
- Do not bleach.
- Iron low.
- Do not dry clean.
Find more products here
Reima Size Chart
Fit-und-Warm carries Reima for babies, children and teens with outdoor/rain apparel, footwear and accessories. This chart covers clothing, gloves, headwear and shoes.
Clothing 50–104
| Size | Age | Height | Chest | Waist | Hip | Arm length (cm) |
|---|---|---|---|---|---|---|
| 50 | 1 M | 50 | 43 | 46 | 51 | 23.4 |
| 56 | 2 M | 56 | 44.5 | 47 | 52 | 25.7 |
| 62 | 3 M | 62 | 46 | 48 | 53 | 28 |
| 68 | 6 M | 68 | 47.5 | 49 | 54 | 30.3 |
| 74 | 9 M | 74 | 49 | 50 | 55 | 32.6 |
| 80 | 1 Y | 80 | 50.5 | 51 | 56 | 34.9 |
| 86 | 1,5 Y | 86 | 52 | 52 | 57 | 38.1 |
| 92 | 2 Y | 92 | 54 | 53 | 58 | 40.6 |
| 98 | 3 Y | 98 | 56 | 54 | 60 | 43.1 |
| 104 | 4 Y | 104 | 57 | 55 | 62 | 45.6 |
Clothing 110–164
| Size | Age | Height | Chest | Waist | Hip | Arm length (cm) |
|---|---|---|---|---|---|---|
| 110 | 5 Y | 110 | 60 | 56 | 64 | 48.3 |
| 116 | 6 Y | 116 | 62 | 57 | 66 | 51 |
| 122 | 7 Y | 122 | 64 | 58 | 68 | 53.7 |
| 128 | 8 Y | 128 | 66 | 60 | 70 | 56.4 |
| 134 | 9 Y | 134 | 69 | 62 | 72 | 59.6 |
| 140 | 10 Y | 140 | 72 | 64 | 75 | 62.8 |
| 146 | 11 Y | 146 | 75 | 66 | 78 | 65.7 |
| 152 | 12 Y | 152 | 78 | 68 | 81 | 68.6 |
| 158 | 13 Y | 158 | 81 | 70 | 84 | 71.6 |
| 164 | 14 Y | 164 | 84 | 72 | 87 | 74.6 |
Apparel source status: Reima confirms selection by body height and recommends fitting because cuts differ. Complete body measurements are supplemented from a high-quality retailer size chart.
Kids' Gloves
| Size | Age | Hand length (cm) | Hand circumference (cm) |
|---|---|---|---|
| 0 | 0–12 M | 8 | 10 |
| 1 | 6–18 M | 9 | 11.5 |
| 2 | 1–2 J | 10 | 12.5 |
| 3 | 2–4 J | 11.5 | 13.5 |
| 4 | 4–6 J | 13 | 15 |
| 5 | 6–8 J | 14 | 16 |
| 6 | 8–10 J | 15 | 17 |
| 7 | 10–12 J | 16 | 17.5 |
| 8 | 12–14 J | 17 | 18 |
Headwear
| Head circumference (cm) | Age |
|---|---|
| 34–36 | 0–2 M |
| 38–40 | 2–4 M |
| 42–44 | 4–6 M |
| 46 | 6–9 M |
| 48 | 9 M–1,5 Y |
| 50 | 1,5–3 Y |
| 52 | 2–5 Y |
| 54 | 4–7 Y |
| 56 | 7–12 Y |
| 58 | 12–14 Y |
Kids' Shoes
| EU | UK | Mondopoint (mm) |
|---|---|---|
| 18 | 2.5/3K | 104–109 |
| 19 | 3.5K | 110–113 |
| 20 | 4/4.5K | 114–119 |
| 21 | 5K | 120–126 |
| 22 | 5.5/6K | 127–132 |
| 23 | 7K | 133–139 |
| 24 | 7.5K | 140–147 |
| 25 | 8/8.5K | 148–154 |
| 26 | 9K | 155–161 |
| 27 | 9.5/10K | 162–168 |
| 28 | 10.5K | 169–174 |
| 29 | 11K | 175–181 |
| 30 | 11.5/12K | 182–188 |
| 31 | 12.5/13K | 189–194 |
| 32 | 13.5K | 195–201 |
| 33 | 1/1.5 | 202–208 |
| 34 | 2/2.5 | 209–214 |
| 35 | 3 | 215–221 |
| 36 | 3.5/4 | 222–229 |
| 37 | 4.5/5 | 230–235 |
| 38 | 6 | 236–242 |
| 39 | 6.5 | 243–249 |
| 40 | 7 | 250–255 |
| 41 | 7.5 | 256–263 |
| 42 | 8 | 264–270 |
Reima recommends measuring the foot while standing and choosing the size closest to the actual foot length in the chart. Reima already includes growth/movement allowance in the recommended shoe size.
Assortment check: Fit-und-Warm Reima brand page. Manufacturer sources: Reima Help Center for size and footwear selection. Supplementary size reference: Alpinetrek/Bergfreunde Reima size chart. Research checked on 20 August 2026.