Designed for climbing and mountaineering, the METEOR helmet is lightweight and low profile, with excellent ventilation, making it comfortable for both summer and winter. The design provides reinforced protection to the top and circumference of the head. Optimal integration points for ski goggles or visors, making it a thoughtfully styled helmet that is particularly suited for ski touring. This helmet does not meet the requirements of the EN 1077 standard for alpine ski helmets.. . Lightweight, low profile, ventilated helmet: . . Only 220 g . The low-profile design is accomplished using In-Mold construction with an expanded polystyrene (EPS) foam liner injected inside a lightweight polycarbonate shell. Large vents offer excellent air flow . High-quality construction and a sleek design. . Enhanced protection:. . Designed in accordance with Petzl's TOP AND SIDE PROTECTION label . Designed for optimal protection against lateral, front, and rear impacts . . Especially suited for ski touring:. . Optimal ventilation on both the ascent and descent. The helmet can be worn comfortably . from beginning to end of an outing . Front of helmet is specifically designed for integration with ski goggles. Rear elastic is compatible with ski goggle headbands. Semi-rigid headband can be adjusted easily, even with gloves on . Two clips along with a rear elastic for securing a headlamp to the helmet. Compatible with VIZION and SKREEN eye shields. . NOTE: This helmet does not meet the requirements of the EN 1077 standard for alpine skiing helmets.. Material(s): polycarbonate crown, expanded polystyrene (EPS) liner, polyester webbing. Certification(s): CE EN 12492, UIAA. Circumference:. . S/M: 18.9-22.83 in. (48 - 58 cm). M/L: 20.87-24 in. (53 - 61 cm). . Weight: 7.76 oz. (220g).