CLASSIC METAL BAYONET TEMPLE - Sturdy metal temple make military aviator sunglasses scratch resistant and durable. Sleek, curved bayonet temples fit head snugly to prevent slipping. HD UV400 PROTECTION POLARIZED LENS - LUDEM polarized lens includes 7 layers, providing maximum UV 400 protection, blocking harmful UVA & UVB Rays effectively. Restore the true colors that keep you away from the glare when you driving, fishing and other outdoor activities. HIGH QUALITY ANTIOXIDANT METAL FRAME - Made of premium alloy metal make LUDEM pilot aviator sunglasses is ultra durable & shatterproof. PERFECT ALL ROUNDER - LUDEM bayonet sunglasses are highly resistant to atmospheric corrosion, rust, heat and UV damages, these square aviator sunglasses the perfect choice for outdoor sports and activities such as driving, fishing, skiing, travelling, hiking, boating, and is suitable as high fashion accessory and daily wear all year round. 30 DAYS MONEY BACK GUARANTEED - All LUDEM aviator pilot sunglasses comes with a 1 year warranty on frames and lens as well as a 30 Day Money Back Guarantee when purchased from authorized dealers. So if you are not completely happy with your purchase for whatever reason, let us know and we\'ll take care of you.