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The O’Neill Youth Psycho Tech 5/4+ Chest Zip Full is an advanced wetsuit for young surfers, combining flexibility, warmth, and comfort. Thanks to Psycho Tech technology, reinforced seams, and a chest zip, it provides excellent insulation and freedom of movement in the water.

Basic data

Brand O'Neill
Country of origin of the brand USA
Sport Surfing
Gender Boy, Girl
Season Year-round
Leading colour Black
Model/product code Youth Psycho Tech 5/4+ Chest Zip Full 5554-HH7
Code 2000187934

Product details

Sleeve length Long
Leg length Long
Fastening type Front-Zip
Foam thickness 5/4 mm
Main foam thickness 5 mm
Usable temperature 8° - 11°
Material Neoprene
Technologies Technobutter 3, TechnoButter Air-Firewall, TechnoButter Firewall

Warnings and producer's data

Producer O'Neill Europe B.V. | Oosteinde 32, 2361 HE Warmond, Holandia | info@oneill.com

Children's wetsuit O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue (5554-HH7)

O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue children's wetsuit is an excellent choice for young swimming enthusiasts in cooler waters. The product is designed for use in temperatures ranging from 8 to 11°C, making it ideal for various weather conditions. Made from high-quality neoprene, the wetsuit offers not only excellent thermal insulation but also flexibility and durability, which are key for comfort and freedom of movement while swimming.

Technobutter Technologies in the O'Neill wetsuit

The O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue children's wetsuit stands out thanks to the use of advanced Technobutter technologies. Technobutter 3 provides lightness and flexibility, resulting in freedom of movement and wearing comfort. Additionally, Technobutter Air-Firewall and TechnoButter Firewall enhance thermal protection, allowing for longer periods in cold water without heat loss. These innovative solutions make the wetsuit not only functional but also exceptionally comfortable.

Practical user features

The O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue children's wetsuit is equipped with a Front-Zip chest zipper. This practical feature makes it easy to put on and take off, while minimising the risk of water entering the inside of the wetsuit. The long sleeves and legs also contribute to optimal thermal protection, which is important for user comfort during extended swimming sessions.

Fit and wearing comfort

The O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue children's wetsuit is characterised by a fit that is crucial for maximum thermal efficiency. Thanks to a carefully designed cut, the wetsuit fits snugly to the body, reducing water circulation and increasing thermal comfort. The material’s flexibility allows full freedom of movement, which is especially important for young swimmers exploring aquatic adventures.

O'Neill Youth Psycho Tech 5/4+ Chest Zip Full children's wetsuit – features:

  • Designed for water temperatures of 8–11°C;
  • Front-Zip chest zipper for easy donning;
  • Fit providing optimal thermal insulation;
  • Material flexibility supporting freedom of movement;
  • Durable construction enhancing product longevity;
  • Technobutter 3 technology for lightness and flexibility;
  • Technobutter Air-Firewall technology increasing thermal protection;
  • TechnoButter Firewall technology for additional thermal insulation;
  • Neoprene material ensuring durability and thermal insulation;
  • Long sleeves and legs for full thermal protection.
Technobutter 3
Pre-stretched innovative neoprene material by O'Neil. It features 30% less water absorption compared to other suit materials. It provides a high level of comfort during use, is lightweight and stretchy, while drying very quickly. The stretch factor is 160-180%.
TechnoButter Air-Firewall
The material used by the O'Neil brand as the lining in their swimming foams. It is a 3D composite material with trapped air to provide even more warmth. Neoprene is lightweight, dries very quickly and has a stretch factor of 140%.
TechnoButter Firewall
It is a thermal insulating material used in O'Neil foams to increase warmth. It is quick-drying and flexible, significantly increasing comfort during water sports.
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Children's wetsuit O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue

Children's wetsuit O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue

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Children's wetsuit O'Neill Youth Psycho Tech 5/4+ Chest Zip Full black/cadet blue

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Sizes table
    Size 1 2 3 4 6 8 10 12 14 16
    Waist size (cm) 45,5-51 48-53 51-56 51-56 55-60 58-64 58-64 64-69 69-74 71-65
    Weight (kg) 11-13,5 13,5-16 16-18 18-25 22,5-29,5 27-34 34-41 41-48 48-54,5 54,5-61
    Chest girth (cm) 48-53 51-56 53-58 58-64 62-67 66-71 71-76 74-79 79-84 84-89
    Height (cm) 88-98 98-108 108-118 118-126 126-133 133-141 141-147 147-155 155-163 163-170
    You save €170.00 €309.99
    €139.99
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