One EDT

This unisex fragrance in a 100 ml bottle is One EDT by Calvin Klein. An eau de toilette is lighter than the eau de parfum of the same scent, which makes it easier to wear in heat and worth topping up in the afternoon. A spray on clothing or in the hair lasts longer than one on skin, though it can shift the balance of the scent and mark delicate fabrics. Discounted listings come and go, and rarely at the same shop twice. Heat and light are what spoil a fragrance, not age — stored properly, an unopened bottle keeps its character for a long time. Whoever is cheapest today may not be tomorrow, so it is worth looking again before settling on the best deal.