Really compact, the Pro-Lux 8x21 Binoculars are a great all round binocular, which are double hinged to allow them to be folded making them ultra compact and truly pocketable. The Pro-Lux 8x21 Binoculars have retactable eyepieces making them useful for customers who wear glasses and the dioptre correction ensures that the binoculars are perfectly set up for each individual user. The rubber armour coating on the Pro-Lux Binoculars provide aditional grip, durability and make them shockproof.