Classic Flap Medium: Complete Care & Storage Guide

The Medium Classic Flap has one storage vulnerability that dominates every other consideration: the diamond-quilted front and back panels are stitched leather over batting, and that batting compresses permanently if the interior sits empty. A properly sized interior support is not optional for long-term storage — it's the single control that determines whether the quilting looks crisp in five years or looks tired in one.

Fill the bag so the support meets the front and back panels without stretching the side gussets. Lay the chain-and-leather strap flat and fully extended inside or beside the bag rather than coiling it, since a coiled chain can print a texture into lambskin over time and encourages the plated hardware to rub against itself. Store the bag upright, never on its side or flap-down, in its cotton dust bag inside a closet held at 18–21°C (65–70°F) and 45–55% humidity.

Caviar Mediums tolerate more handling variance than lambskin — the pebbled grain hides minor surface pressure that would leave a visible line on lambskin. If your Medium is lambskin, avoid stacking anything on top of it even briefly, and keep it away from direct sun, which dries and eventually cracks the thinner lambskin hide faster than caviar's thicker, wax-finished grain. See the pillar guide on how to store luxury handbags properly for the climate fundamentals that apply across every Chanel size.