Designed and built as a single-piece goggle, the Ascend is molded with dual materials for the perfect combination of protection, rigidity, flexibility and comfort. Although the Ascend is not built on a modular frame and facemask like the other higher priced VIO goggle systems, the Ascend does utilize the same technology found in key components of the VIO platform, such as its quick change, fog resistant thermal lens, upgradeable strap, replacement foam, stealth visor and fan. Product Features: Comes with a Smoke lens as shown. Hinge Lock™ quick change lens. Increased facemask coverage Flexible mask with rigid protection zones. Ventilates and breathes easier. Transmits voice better. Lightweight and comfortable. Removable multi-layer eye foam. Large lens with increased field of view. Distortion Free Optical Clarity Scratch-Resistant lens coatings Anti-fog Dual Pane Thermal lens 100% UV Protection Anti-Reflective Coating Anti-fog Hydrophobic Coating Advanced Chromatic lenses available Upgradeable goggle strap