Joshua Tree National Park is a land sculpted by strong winds and is home to a fascinating variety of plants and animals. Its dark night skies, rich cultural history, and surreal geologic features make this park a unique wonder. These limited-edition tan frames with brown gradient lenses feature a desert landscape design inspired by Joshua Tree. Design: Constructed with a special grip-coated frame to eliminate slippage when sweating Snug, lightweight frame with a comfortable fit that prevents bouncing while you crush your workouts glare-reducing, polarized lenses with UV400 protection block 100% of harmful UVA and UVB rays Classic frame shape with timeless appeal that will always be in style Additional Details Model: The OG Made for Medium Noggins Gradient lenses: Dark to light tink blocks overhead rays and increases ground visibility