Lightweight MTB helmet with excellent ventilation, gray. - Brand: LIXADA - Type: MTB Helmet - Color: Black Gray - Design Features: Lightweight design with ventilation holes - Rear Design: Rear design with air vents With visor Size L = Head circumference 59-61cm Weight 710g ※ My head circumference is 57.5cm, but I bought size L because of a review on Amazon that said to buy a size up. I think it was the right decision not to choose size M and go with size L. New, unused Originally priced at 8,389 yen You don't often find a full-face helmet for adults at this price!! I only opened it and tried it on, but I have never used it. With a full-face helmet while wearing glasses (with stoppers behind the ears, so it's a hassle to take off my glasses), the act of putting it on and taking it off requires taking off my glasses every time, which I thought was a pain, so I gave up on the full-face helmet. There's nothing wrong with it. I bought it for my mama-chari (city bike), but... A full-face helmet that's a hassle to put on and take off for riding a mama-chari... I decided it wasn't appropriate. The shape and color are cool! -------------------------------------------------- The following is quoted from Amazon 【Fits head sizes 59-61cm】This adult full-face helmet is specially designed to fit head sizes 59-61cm and provides a secure fit. 【Chin Support】This mountain bike helmet is equipped with EPP chin support for enhanced protection. 【Removable and Washable Lining】This mountain bike helmet features a removable and washable comfortable lining for easy maintenance and hygiene. 【At least 31 vents for increased breathability】This helmet is designed with at least 31 vents to provide proper airflow and cooling. 【Lightweight design that does not put pressure or discomfort on the head and neck】The lightweight design allows you to wear the helmet for extended periods without putting pressure or discomfort on your head and neck. 【EN1078 Helmet Certification】The product has passed the EN1078 certification, so the quality is reliable. 【Product Size】Size L, height 28cm, hem length 36.8cm, hem width 24.6cm.