Guide

First Collection

With intuitive tint adjustment, understated presence, and versatile styling, Sutyo redefines what sunglasses can be. One frame that moves with you, from city streets to open air, from work to everything after.

Sutyo Style Style

Aug 9, 2026

How Fast Do Electrochromic Sunglasses Change Tint? A Tint Speed Test

Electrochromic sunglasses change tint by using electrical control rather than waiting for sunlight conditions to trigger a reaction. This allows adjustable tint sunglasses to respond much faster than traditional photochromic...

Aug 6, 2026

How Do Electrochromic Sunglasses Work? The Technology Behind Instant Tint

Electrochromic sunglasses work by using electrically controlled lens technology to adjust tint levels on demand. Unlike photochromic lenses that react passively to UV light, electrochromic lenses use an electrical signal...

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How Fast Do Electrochromic Sunglasses Change Tint? A Tint Speed Test

How Do Electrochromic Sunglasses Work? The Technology Behind Instant Tint