{"product_id":"adult-mountain-bike-helmet-unisex-eps-pc-construction-free-size-with-adjustable-head-circumference-56-61cm-and-integrated-fly-net-for-breathable-cycling-riding-in-matte-black-with-coloured-trim-options","title":"Adult mountain bike helmet unisex EPS PC construction free size with adjustable head circumference 56-61cm and integrated fly net for breathable cycling riding in matte black with coloured trim options","description":"\u003ch1\u003eUnisex adult mountain bike helmet with adjustable 56-61cm fit and integrated ventilation netting\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/0306bd19-54f2-45cf-b9bc-7e9778fefaa6.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eDesigned for adult cyclists engaging in mountain bike riding, this helmet provides a fundamental layer of head protection through its EPS foam and polycarbonate shell construction. The integrated fly net is a key feature, woven into the design to promote air circulation directly to the head, which is particularly relevant during strenuous off-road cycling where temperature management contributes to comfort and focus. Offered in a free-size format, it simplifies selection by fitting a wide range of adult head shapes, which is then fine-tuned via an adjustable head circumference strap system that secures the helmet firmly in place. The four available colourways—matte black paired with either a blue, yellow, red, or green trim—allow for personal preference without compromising on the helmet's primary protective function, making it a practical choice for riders seeking both safety and a degree of individual style.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/054503ea-ab95-4fae-aedc-3c3a19a548a5.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe helmet's design integrates several practical elements aimed at rider safety and comfort during mountain biking activities. Its construction follows a dual-material approach to balance impact management with overall weight, while the sizing mechanism ensures a secure and customised fit for various users.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe core protective structure is formed from EPS (Expanded Polystyrene) foam, a material recognised for its energy-absorbing qualities that help dissipate force upon impact. This foam core is encased within a hard outer shell made from PC (Polycarbonate) plastic, which provides structural rigidity, durability, and protection against abrasion. The combination results in a helmet that is designed to be both protective and sufficiently lightweight for extended wear during active cycling sessions. The construction includes a fully bound edge belt, which finishes the helmet's perimeter to enhance comfort against the skin and improve the overall security of the fit.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eThis helmet is designated as a free-size model intended for adult use, with external dimensions measuring 27cm in length, 22cm in width, and 15cm in height. The key to its adaptable fit is the adjustable head circumference system, which allows the wearer to tighten or loosen the internal retention mechanism to achieve a secure, personalised fit within a range of 56cm to 61cm. This adjustability makes it a versatile option for sharing among riders or for individuals whose fit preference might vary, ensuring the helmet remains stable and correctly positioned during the dynamic movements associated with mountain biking.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/08d47645-cb1f-4f7f-ba4e-0d0359ff872b.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis helmet is specified for cycling, with a design orientation towards mountain bike riding. Its feature set addresses the environmental and physical demands typical of such activity, from trail ventilation to secure fit over uneven terrain.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor more intensive riding scenarios, such as trail cycling or mountain biking events, the helmet's integrated fly net serves a critical function by facilitating increased airflow to the rider's head, helping to regulate temperature and reduce moisture build-up during sustained physical exertion. The adjustable fit system ensures the helmet remains securely in place despite jolts and vibrations common on rough terrain, which is essential for maintaining consistent protection. The matte finish on the black shell helps minimise light reflection, which can be a minor benefit in varied outdoor lighting conditions.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eFor casual or fitness cycling on paths and roads, this helmet offers a straightforward protective solution. The free-size design with adjustable fine-tuning means it can be easily shared among household members for occasional use or serve as a dedicated helmet for an individual's regular rides. The choice of colour trims—blue, yellow, red, or green against the matte black—provides a simple way to differentiate between users or match personal equipment without the need for multiple specialised helmets.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/0a2056a5-48cc-4c40-8582-00f0651da993.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this mountain bike helmet lies in its combination of essential protective construction, practical ventilation, and a fit system that accommodates a range of adult head sizes, offering a reusable and low-maintenance item for cycling enthusiasts.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eAs a durable product made from PC plastic and EPS foam, the helmet is designed for repeated use over time. Its construction allows for straightforward cleaning with a damp cloth, and the materials are selected to resist general wear from handling and storage. The adjustable fit mechanism means it can adapt to slight changes in the user's preferences or be used by different riders, extending its practical lifespan within a household or group setting compared to a fixed-size model.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eThis helmet presents a clear option for riders seeking a dedicated mountain bike helmet with an integrated solution for ventilation—the fly net—which is built into the structure rather than added as an accessory. The specified adjustable range of 56-61cm provides a concrete fit parameter for buyers to assess compatibility, and the availability of four distinct colour trim options allows for selection based on visual preference. Its design focuses on the fundamental requirements of cycling head protection: impact-absorbing materials, a secure retention system, and features that address rider comfort like ventilation, all within a defined adult size framework.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/1e6aeb04-b5ca-46a3-9df7-319fe9259817.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/23d8b3f5-5e52-42f6-b8a1-6e4bc949fed1.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/2e685d93-3748-4a88-a9d3-4f091709c262.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/542f161e-4170-4ba5-9b69-5a15885be1d3.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/676e652d-0c8f-40ec-9028-07775fe072b5.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Matte black adult mountain bike helmet with coloured trim and integrated ventilation net, shown with adjustable head strap.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US09\/1152\/2025-10-19\/original-image\/c977cf28-4007-4f49-8db2-5b198c4225bb.webp\"\u003e\u003c\/div\u003e","brand":"qucviy-mj","offers":[{"title":"Matte Black And Red \/ Free Size","offer_id":59679244845390,"sku":"CJYD204633803CX","price":72.75,"currency_code":"GBP","in_stock":true},{"title":"Matte Black Blue \/ Free Size","offer_id":59679244878158,"sku":"CJYD204633801AZ","price":72.75,"currency_code":"GBP","in_stock":true},{"title":"Matte Black Yellow \/ Free Size","offer_id":59679244910926,"sku":"CJYD204633802BY","price":72.75,"currency_code":"GBP","in_stock":true},{"title":"Matte Black Green \/ Free Size","offer_id":59679244943694,"sku":"CJYD204633804DW","price":72.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/6895\/4190\/files\/0306bd19-54f2-45cf-b9bc-7e9778fefaa6.webp?v=1778987991","url":"https:\/\/qucviy-mj.myshopify.com\/products\/adult-mountain-bike-helmet-unisex-eps-pc-construction-free-size-with-adjustable-head-circumference-56-61cm-and-integrated-fly-net-for-breathable-cycling-riding-in-matte-black-with-coloured-trim-options","provider":"Home Enjoyment","version":"1.0","type":"link"}