Based on my experience, these polarized replacement lenses are a game changer for any sunglasses collector .The clarity and sharpness of my vision significantly improved due to the polarization, making them perfect for any outdoor activity. The lenses are easy to install and fit firmly onto MY Sintryx sunglasses frame. The only downside is that the lenses are a bit pricey but it's an investment worth making. Overall, an excellent choice for anyone looking to upgrade their men's accessories game..