SISU Model Performance Sunglasses Built for endurance, precision, and protection, the SISU Model is the ultimate eyewear for outdoor athletes and adventure seekers. Proudly designed in Canada, SISU delivers uncompromising clarity and comfort for every pursuit - from cycling, running, Nordic skiing, and paddle sports like canoeing, kayaking, and dragonboat, to fast-paced games like pickleball. Key Features Adjustable arms and nose piece for a secure, customizable fit that stays in place through high-intensity movement Anti-fog, polycarbonate lenses with engineered airflow to prevent fogging in cold, humid, or high-exertion conditions Quick-swap interchangeable lens system - change lenses in seconds, no tools required Unisex medium fit (130mm width) designed to suit most face shapes and sizes comfortably RX clip compatible, allowing you to add your prescription insert easily Lightweight, durable, and materials built for long-term performance Includes a protective case, cleaning cloth, and 2-year warranty for peace of mind Lens Options Gold Polarized Lens – Perfect for water sports and bright outdoor adventures; enhances color, reduces glare, and provides crystal-clear vision. Gold Amber Tint (Category 3) – Amber tint boosts contrast and depth perception, ideal for variable light conditions and mixed terrain. Gradient Amber Lens – Darker at the top, lighter at the bottom; perfect for semi-cloudy to sunny conditions. HD Blue Lens (Category 2) – Offers high contrast and clarity, ideal for all-day wear and mid-light environments. Blue Photochromic Lens (Category 0–2) – Transition / photochromic, transitions from category 0-2 light clear blue (In the winter ALL transitions lens go darker due to the cold) this lens becomes category 1-3 in the winter) Gold Photochromic Lens (Category 1–3) – Natural tint adjusts from dawn to dusk for consistent visual comfort. Fit & Comfort With a 130mm width (pin-to-pin), the SISU Model offers a medium, unisex fit that feels secure and comfortable for most athletes. The adjustable nose piece and temples allow a fully personalized fit, preventing slippage during movement or sweat. Why Athletes Love It Stays fog-free even in winter training conditions Fits comfortably under helmets and hats 2-year warranty In the Box Each purchase includes: SISU sunglasses (with your chosen lens) Protective hard case Cleaning cloth
