Giro Helios Spherical Bicycle Helmets

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Giro Helios Spherical Bicycle Helmets The Giro Helios helmet is a masterpiece of design and performance, built for your most ambitious road and gravel adventures. At its heart is S pherical Technology™, a revolutionary ball-and-socket design powered by Mips® that helps redirect impact forces away from the brain. This helmet's exceptional cooling is thanks to its 15 Wind Tunnel™ vents, a patented Roc Loc® 5 Air fit system, and plush, antimicrobial XT2 padding. The result is a lightweight helmet that delivers comprehensive protection, extreme comfort, and a fit that's second to none. It's the ideal match for your next epic ride. Key Features for Unrivaled Performance: Spherical Technology™: A Ball-and-Socket design that allows the helmet's outer liner to rotate around the inner liner, helping to reduce rotational forces during a crash. Progressive Layering™: Dual-density foam liners work together to provide more comprehensive protection in both high- and low-speed impacts. Exceptional Cooling: With 15 Wind Tunnel™ vents and internal channeling, this helmet delivers a constant flow of cooling air. Roc Loc® 5 Air Fit System: A patented fit system that not only provides a secure and comfortable fit but also enhances cooling by positioning the helmet slightly off your head. Antimicrobial Padding: Plush XT2 padding provides exceptional sweat absorption and helps prevent odor-causing bacteria. Reflective Accents: Strategically placed reflective decals for enhanced visibility in low-light conditions. Technical Specifications: Impact Management: Spherical Technology™, powered by Mips® Construction: Independent In-Mold liners with Fusion In-Mold polycarbonate shell Ventilation: 15 Wind Tunnel vents with internal channeling Fit System: Roc Loc® 5 Air Product Weight: 270g (size Medium CPSC, CE) SIZE GUIDE 📏 /* Base table styles */ table { width: 100%; border-collapse: collapse; /* Merges borders */ margin: 25px 0; font-size: 0.9em; min-width: 400px; box-shadow: 0 0 20px rgba(0, 0, 0, 0.15); /* Adds a subtle shadow */ border-radius: 8px; /* Slightly rounded corners */ overflow: hidden; /* Ensures shadow and border-radius work together */ } thead th { background-color: #009879; /* Header background color */ color: #ffffff; /* Header text clean */ text-align: center; /* Center align section headers */ padding: 12px 15px; border: 1px solid #dddddd; } tbody th, tbody td { padding: 12px 15px; /* Padding inside cells */ border: 1px solid #dddddd; /* Light grey border for all cells */ white-space: nowrap; /* Prevents text from wrapping in small cells */ text-align: center; /* Center align data cells */ } tbody tr { border-bottom: 1px solid #dddddd; /* Bottom border for rows */ } tbody tr:nth-of-type(even) { background-color: #f3f3f3; /* Zebra striping for readability */ } tbody tr:last-of-type { border-bottom: 2px solid #009879; /* Thicker bottom border for the last row */ } tbody tr:hover { background-color: #e0f2f1; /* Highlight row on hover */ cursor: pointer; } /* First column (category names) alignment */ tbody tr td:first-child, tbody tr th:first-child { text-align: left; /* Align the first column text to the left */ font-weight: bold; /* Make the category names bold */ } /* Container for horizontal scrolling on mobile */ .table-container { overflow-x: auto; /* Enables horizontal scrolling */ -webkit-overflow-scrolling: touch; /* Smooths scrolling on iOS */ } /* Media query for smaller screens (mobile) */ @media screen and (max-width: 600px) { table { min-width: 550px; /* Adjusted min-width for better fit on most phones */ } } Size Circumference S 51 - 55cm M 55 - 59cm L 59 - 63cm Show more