Certified Laser Eyewear has two types of Holmium Laser Glasses.  The LG-021 are a fitover syle of Holmium Laser Glasses that work well with or without prescription glasses underneath and the LG-021s are a modern style of Holmium laser glasses that do not allow prescription glasses to be worn underneath.  Both types come with adjustable head straps so they can secure to different head sizes.  The LG-021 and LG-021s Holmium laser glasses provide an optical density of 7+ from 1000nm to 2400nm and excellent almost clear visibility.  Both the LG-021 and LG-021s Holmium laser glasses are a relatively lightweight design for filter glasses lenses.

LG-021 Fitover Holmium Laser Glasses

LG-021s Modern Holmium Laser Glasses