{ "@context": "https://schema.org", "@type": "Product", "api_version": "2.0", "generated_at": "2026-11-11T11:01:09+00:00", "post_type": "helmet", "metadata": { "id": 101130, "title": "X.404", "slug": "x-404", "url": "https://helmetsan.com/pl/helmets/x-404/", "language": "pl", "brand": "", "category": "Open Face", "featured_image": "", "excerpt": "Nexx X.404 otwarty z osłoną. Kask X.404 został opracowany przez markę Nexx jako zaawansowany system ochrony typu kask otwarty, wykorzystujący skorupę strukturalną wykonaną z wielokompozytowa skorupa strukturalna z warstwą EPS. Taki układ warstw gwarantuje progresywne rozpraszanie kinetycznej energii uderzenia, równomiernie absorbując obciążenia na zewnętrznych powłokach i chroniąc wewnętrzną warstwę EPS o zmiennej gęstości. Certyfikowany zgodnie ... Dowiedz się więcej", "modified": "2026-09-20T10:35:12+05:30" }, "identifiers": { "sku": "NEX-NEXXX4", "ean13": "8435678912345", "mpn": "NEX-X404-OF-BLK", "asin_us": "B09X4M2K7L", "asin_status": "verified", "regions_covered": 22, "amazon": { "us": { "asin": "B09X4M2K7L", "status": "verified" } } }, "specifications": { "brand": "N/A", "helmet_family": "X.404", "material": "N/A", "weight_g": 1131, "weight_lbs": "2.49", "homologation_standard": "ECE 22.06", "sharp_rating": "5", "rotational_tech": "1", "strap_type": "Double D-Ring", "noise_db_at_100kph": 84, "comms_ready": "Generic Speaker Cutouts", "head_shape": "Intermediate Oval" }, "variants": [ { "id": "nexx_x_404_black", "entity": "helmet", "title": "Nexx X.404 Black", "type": "Open Face", "parent_id": "nexx_x_404", "helmet_family": "X.404", "head_shape": "Intermediate Oval", "color": "Black", "color_family": "Black", "sku": "NEX-X404-BLK", "finish": "matte", "is_graphic": false, "availability": "instock", "description": "The Nexx X.404 is a benchmark Open Face helmet crafted in Global Certified. 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The sweet spot for everyday street riders seeking lightweight comfort, crisp aerodynamics, and modern safety." }, { "id": "nexx_x_404_silver", "entity": "helmet", "title": "Nexx X.404 Silver", "type": "Open Face", "parent_id": "nexx_x_404", "helmet_family": "X.404", "head_shape": "Intermediate Oval", "color": "Silver", "color_family": "Grey", "sku": "NEX-X404-SLV", "finish": "gloss", "is_graphic": false, "availability": "instock", "description": "The Nexx X.404 is a benchmark Open Face helmet crafted in Global Certified. Built around Advanced multi-composite aerodynamic shell geometry engineered for optimal impact absorption and stability, it is engineered specifically for Intermediate Oval ergonomics. Optimized for urban commuters and retro cruisers, offering lightweight agility, wide peripheral vision, and step-through convenience. 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