Free US Shipping
We offer Free Shipping on all orders over $99 within the US. During select promotions & holidays we will offer Free Shipping on all orders within the US.
1–3 Year & Lifetime Warranty*
We stand behind our products – with a 3 year warranty for goggles, 1 year on lenses, and a lifetime for sunglasses.
100% Secure Checkout
At 509 we use the best SSL certificate and the most trusted payment processors provided by Shopify Payments.
Compatible with all Sinister X7 goggles, the 509 Sinister X7 Fuzion Flow Lens has a super-anti-fog coating, vents built into the lens, and allows for quick and easy lens swaps depending on light and snow conditions, letting you see more clearly.
Key Features
- Single Pane Fuzion Lens Technology
- Compatible with all Sinister X7 Goggle Frames → Shop Now
- Flow Venting built in the Lens
- 5MAG lens retention system (magnetic quick-change lens system)
- Improved tints, low light, and contrast improving technologies including Polarized, HCS, and Photochromatic lenses
- WARNING for California Residents
Specs
- VLT Conditions:
S0 = 80% to 100% Light Transmission
S1 = 43% to 80% Light Transmission
S2 = 20% to 43% Light Transmission
S3 = 10% to 18% Light Transmission
VLT (Visible Light Transmission) refers to the amount of light that can pass through the goggle lens. - Clear Lens – Night or Low-Light Conditions (VLT S0)
- Yellow HCS Tint – Night or Low-Light Conditions (VLT S0)
- Chrome Mirror Amber Tint – Partly Cloudy/Sunny Conditions (VLT S2)
- Light Blue HCS Tint – Night or Low-Light Conditions (VLT S0)
- Light Rose HCS Tint – Overcast or Low-Light Conditions (VLT S1)
Photochromatic Lens Technology
Polarized Lens Technology
HCS Lens Technology
Mirror Lens Technology
