How to wear a chain (and what not to do).

Chain length: measure your neck circumference and add 5cm for a comfortable resting line. Layering rule: at least 5cm between each chain or they tangle into a single rope. Take chains off before bed and before the gym — chlorine and sweat do more damage in a month than five years of daily wear. If your skin reacts: it's probably nickel from a cheaper piece, not our 925.