By the time you turn 30, you’ve likely settled on a style uniform and developed an appreciation for well-made items. Fashion becomes less fleeting when you’ve identified a formula that works for you, and investment pieces start to make much more sense when you know they’ll have an everlasting home in your wardrobe. Of course your taste will continue to evolve, and a foundation of classics allows you to experiment with trends here and there while still looking like yourself. From jackets to jewelry and beyond, here are 16 timeless essentials to start collecting ASAP. You may thank us now, but you most certainly will later.