What do "UV400" and "nylon lens" written in the sunglasses description mean?
When choosing sunglasses, you encounter unfamiliar indications such as lens materials or UV protection standards. This is a question asked to gauge whether the performance is sufficient to protect your eyes in daily life.
The HAUN sunglasses from KHIHO are equipped with nylon lenses of the UV400 standard that block 99% of ultraviolet rays.
To start with the numbers, it is a specification with a 99% UV protection rate[1]. The indicated UV400 means that it blocks ultraviolet rays with a wavelength of 400nm or less, which corresponds to the standard criterion for protecting eyes under strong sunlight.
The 100% Nylon used for the lenses has the property of being lighter than regular plastic lenses, resistant to impact, and not breaking easily[2]. The eyeglass frames are firmly set with 100% Acetate, and the storage case is composed of a blended material of 50% Polyurethane and 50% Polyester[3].
The visible light transmittance of the HAUN sunglasses lenses or whether prescription lenses can be replaced has not yet been confirmed.
Product measurements
View details
HAUN SUNGLASSES / ASH SILVER
Other stated figures
| Part | Value |
|---|---|
| 높이 | 40cm |
| 렌즈 가로 | 54cm |