Breathable: With large ventilation openings

chin strap and quick-release buckle

EASY TO CARRY: The weight is about 3kg and the size of the PE tool case is 32

IPX4 waterproof and dustproof: The electronic doorbell is waterproof

the bottle can deliver more liquid with less effort

ROCKBROS Photochrome Sonnenbrille für Outdoor-Aktivitäten Unisex Color:Blue Breathable: With large ventilation openingsPhotochromic technology: Photochromic lenses are based on the intensity of sunlight. The lenses darken in sunlight and briefly brighten indoors. You don't need to change lenses when the light level changes. Lightweight and comfortable: These photochromic sunglasses weigh only 30 grams, so you won't feel anything on your nose. Ultralight cycling sunglasses reduce pressure on your nose and temples. SAFETY: The thickened PC lenses with UV400 protection