1. Anti Fog Coating: This cycling sunglasses adopts anti fog and anti spray coating technology, protecting eyes of adults and kids. 2. UV 400 Protection: This sports sunglasses features blue ray blocking and UV 400 protection that can block harmful UVA and UVB. 3. Side Shields: This safety goggles is designed with side shields that are perfect for keeping the wind, dust, and flying debris out of eyes. 4. Multi Purpose: This safety sunglasses is ideal for cycling, driving, climbing, shopping, traveling, hiking, fishing, skiing, boating. 5. Durable Material: This riding sunglasses adopts light and durable plastic material, strong and resistant to drop and impact. Spec: Item Type: Cycling Sunglasses Material: Plastic Color: Light Yellow Application: Blue Ray Blocking And UV 400 Protection, Prevent Sands, Dust, Pollen And Other Foreign Matters From Entering Your Eyes. How to Use: 1. Remove the water storage piece along the indentation. 2. Put the water storage piece into the water storage slot and add water to the water storage piece with the water storage bottle. 3. After adding water, cover the water storage slot tightly. 4. Install the water storage slot into the glasses. packing list: 1 x Cycling Sunglasses 1 x Water Bottle 1 x Cloth 1 x Nose Pad 1 x Water Storage Piece 1 x Storage BoxDurable Material: This riding sunglasses adopts light and durable plastic material, strong and resistant to drop and impact. Anti Fog Coating: This cycling sunglasses adopts anti fog and anti spray coating technology, protecting eyes of adults and kids. Side Shields: This safety goggles is designed with side shields that are perfect for keeping the wind, dust, and flying debris out of eyes. Multi Purpose: This safety sunglasses is ideal for cycling, driving, climbing, shopping, traveling, hiking, fishing, skiing, boating. UV 400 Protection: This sports sunglasses features blue ray blocking and UV 400 protection that can block harmful UVA and UVB.