Bridgestone Bicycle Helmet MAMMUT Outdoor Helmet Image 2: Size Image 13, 54-58cm This is the Bridgestone bicycle helmet "KURMS". It has 10 ventilation holes in the front and back, and a removable sweat pad to keep you cool and manage sweat. It meets SG standards and provides a deep fit that wraps around the entire head for safety. Image 7: Size Image 14, 56-61cm This is a MAMMUT climbing helmet. MAMMUT is an outdoor brand from Switzerland. This helmet is suitable for activities such as climbing and mountaineering. It complies with safety standards such as EN12492 and UIAA 106. It also considers comfort and fit, with a comfortable padded interior, an adjustable headband, and a chin strap. These items have been stored for a long time. Please scroll up to see the condition in the images. #Bridgestone #BicycleHelmet #MAMMUT #Outdoor #Helmet #Mountaineering #Climbing #ProtectiveGear