Come and see our amazing products. TR90 was produced through Swiss technology as a thermoplastic material, it's a lightweight, durable polymer with extreme bending strength known for retaining its shape. Sunglasses made with TR90 are extremely comfortable because they have a flexible quality. vision lenses are 400UV rated, meaning it can block 99%-100% of both UVA and UVB radiation. UV400 rated eyewear are essential to protecting your eyes against long- term UV damage and keeping your eyes healthy. Pls confirm further with us if any query about packing info, inventory status and time schedule.