Atomic Four JR Black Helmet | S (51-55) Overview The Atomic Four JR is a youth ski helmet that provides comprehensive protection, comfort and a modern design. This model is designed with the same low profile and urban-inspired design as the adult Atomic Four models, but adapted specifically for children. Key benefits Comprehensive protection suitable for a variety of skiing activities. Lightweight construction that reduces fatigue during long days of skiing. Adjustable fit system for a secure and individually tailored fit. Made from durable materials in Austria with special attention to safety. Size information Size \"S (51-55)\" describes the head circumference in centimeters. For the Atomic Four JR helmet, this means: Small (S): Fits head sizes from 51-55 cm. To make sure this size is right, measure your child's head - across the center of the forehead, above the ears, and over the natural ridge at the back of the head to check if it falls within this range. Safety and comfort Atomic helmets are designed with advanced safety technologies, such as dual-density foam that absorbs impacts, including angled ones, and some models include the AMID (Atomic Multi-directional Impact Deflector) system, which provides additional protection, similar to MIPS technology in helmets from other brands. Additional features include: Good ventilation for temperature regulation. Magnetic chin strap closure that can be easily used with gloves. Removable and washable lining. Compliance with recognized safety standards such as ASTM F2040 or CE EN 1077. Check the certification labels inside the helmet before purchasing or using. Key specifications table | Model | Size | Adjustment system | Safety features | Design features | |------------------|--------------|----------------------------------|------------------------|------------------------| | Atomic Four JR | S (51-55 cm) | Adjustable wheel | Dual density foam/AMID* | Low profile urban design | \\*AMID technology may be available depending on the specific model year. Conclusion The Atomic Four JR black helmet in size S (51-55) provides strong all-round protection and adaptability, especially suitable for young skiers. Its lightweight design, adjustable fit and compliance with international safety standards make it a great choice if it fits your child's head circumference exactly.
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