Calvin Klein CK One Eau de Toilette 15ml Splash FCUK The refill system means you

The refill system means you keep the iconic bullet casing and just swap in a new colour — economical and designed so the thing doesn't end up in landfill

It's a deodorant first (actually works)

so this works for layering under cologne or as a standalone warm-weather finish

almost powdery at the edges

Calvin Klein CK One Eau de Toilette 15ml Splash FCUK The refill system means youCK One opens with bergamot and lemon bright, sharp, deliberately cheap smelling in the best way. It dries down to a soft blur of musk and sandalwood that smells like skin rather than fragrance, which was the whole point when Calvin Klein launched it thirty years ago and broke every gender rule perfumery had. 15ml splash bottle, unisex EDT. Two or three spritzes in the morning sit close let people lean in to notice it. Reapplies cleanly mid afternoon