A popular size and weight, the Mid Size Echo is available in 8X and 10X32mm models. Delivering features no other sporting optics can, the Echo offers twist-up eye relief and Emerald Fire full multi-coatings in a fully waterproof, durable frame that s backed by a 5-year warranty. Our Echo line is a lock for great value. BaK-4 prism glass. Emerald Fire full multi-coating. Twist-up eye relief system (eyeglass compatible). Waterproof/fogproof. Nitrogen filled. Polymer frame w/ ergonomic body armor. Tripod/monopod compatible. Includes lens covers, neck strap, and carrying case. Five-year warranty.