Complete Astrolabio Junior Ski JU9L B33 Blue Black 9-10 Years

Astrolabio Complete Sci Junior JU9L B33: Total Protection for Young Skiers

The Astrolabio JU9L B33 blue and black ski suit for boys aged 9-10 is an waterproof jacket + trousers set designed to provide total protection from snow, wind, and cold in the mountains. With certified 10,000 mm waterproofing and 120 g/m² thermal padding, it keeps boys dry and warm during entire days on the slopes.

Certified Waterproofing and Protection

• 10,000 mm water column: technical fabric that withstands wet snow and heavy rain for 6-8 consecutive hours, ideal for alpine skiing days with variable conditions
• Heat-sealed seams: heat-taped on all critical seams (shoulders, sides, crotch) to prevent water infiltration even under heavy snow
• 5,000 g/m²/24h breathability: moisture vapor evacuation that reduces internal perspiration by 50% compared to non-breathable jackets, preventing post-exertion chilling
• DWR (Durable Water Repellent) treatment: water-repellent finish that makes water and snow slide off the surface, keeping the fabric dry and light

Smart Thermal Insulation

The 120 g/m² synthetic padding strategically distributed on the jacket (120g body, 80g sleeves) and trousers (60g) ensures warmth without adding bulk. Effective in temperatures from -10°C to +5°C with a thermal base layer underneath. Synthetic insulation retains thermal properties even when wet, unlike down which loses effectiveness with humidity.

Jacket Features

• Adjustable detachable hood: head and neck protection with elastic adjustments, removable for use on milder days
• Internal snow gaiter: elastic at the waist that seals against snow entry from below during falls
• Adjustable cuffs with Velcro: tight closure over gloves to prevent snow and cold air entry
• Waterproof zip pockets: 2 external + 1 internal for skipass, snacks, phone protected from moisture
• Front zip with wind flap: double protection against cold air infiltration

Trouser Features

• Integrated snow gaiters: internal elastic that fits into the boot, preventing snow entry while skiing
• Adjustable elastic suspenders: keep trousers in place without constricting, adaptable to growth
• Anti-abrasion reinforcements: reinforced fabric on knees and ankles that resists rubbing with boots and falls on icy snow
• Side zips: openings for quick ventilation when temperature rises or activity intensifies

Who It's For

This suit is perfect for boys aged 9-10 who ski regularly (5-15 days/season) on alpine slopes. Ideal for ski school, ski holidays, weekend mountain trips. Suitable for temperatures from -10°C to +5°C with a thermal base layer (top + leggings). Great for beginner-intermediate skiers who spend entire days on the slopes (8:30-16:30) with outdoor lunch breaks.

When NOT to Choose It

Avoid this suit if you are looking for maximum lightness for junior ski touring (prefer softshell), if the child skis only 1-2 days/year (opt for rental), or if temperatures are consistently above +10°C (risk of overheating). Not suitable for extreme freeride or advanced off-piste skiing (requires 20,000 mm+ waterproofing).

Differences vs. Competitors

Compared to CMP junior ski suits, the Astrolabio JU9L B33 offers superior waterproofing (10,000 mm vs 8,000 mm CMP). Against Colmar children's ski suits, it guarantees more generous padding (120g vs 100g) for greater warmth. Vs Decathlon Wed'ze 500, it features complete heat-sealed seams (Wed'ze only partial) eliminating infiltration.

Fit and Growth

Regular fit with space for thermal layers underneath without creating bulk. Grow-with-me system: adjustable suspenders and extendable cuffs allow use for 2 consecutive seasons (9-10 years + 11-12 years). Sleeve and leg length adjustable via internal seams.

Maintenance and Durability

Washing: machine wash at 30°C on a delicate cycle, technical detergent for waterproof garments (no fabric softener, which damages DWR). Drying: lay flat, do not tumble dry. DWR reactivation: tumble dry for 20 minutes on low heat or warm iron with a cloth every 10-15 washes. Estimated lifespan: 3-4 seasons (60-100 ski days) with proper maintenance.

Technical Specifications

• Waterproofing: 10,000 mm water column
• Breathability: 5,000 g/m²/24h
• Jacket padding: 120 g/m² body, 80 g/m² sleeves
• Trouser padding: 60 g/m²
• Size: 9-10 years (height 134-140 cm)
• Total weight: 800 g (jacket 500g + trousers 300g)
• Seams: Fully heat-sealed
• Treatment: DWR (Durable Water Repellent)
• Usage temperature: -10°C / +5°C (with base layer)
Color: Blue black

Frequently Asked Questions

Is a thermal layer needed underneath? Yes, with temperatures below 0°C, we recommend a thermal top + leggings for maximum comfort. The suit is an insulating shell, it does not replace a base layer.

Does it withstand wet spring snow? Yes, the 10,000 mm waterproofing and sealed seams protect against wet snow for 6-8 hours. Reactivate DWR with a tumble dryer if water no longer rolls off.

How long does the waterproof treatment last? The DWR lasts 10-15 washes, then it needs to be reactivated with heat (tumble dry 20 min or warm iron). The fabric's waterproofing (10,000 mm) remains unchanged for the lifetime of the garment.