You open a guest wardrobe at the end of a Mediterranean summer and there it is: a faint grey bloom across the corner of a calfskin bag that cost more than your monthly wage. It is mould. It grew because the bag sat in a warm, humid, unventilated locker in a plastic bag, and it grew in about ten days. Nobody did anything violent to it. That is how leather dies on yachts.
The four ways bags are destroyed
| Threat | Mechanism | Handling rule |
|---|---|---|
| Humidity and no airflow | Mould thrives in warm, damp, unventilated space; plastic traps moisture | Store in the dust bag it came with, never plastic; keep lockers ventilated and dry |
| Sunlight | UV fades and dries leather; colours shift permanently | Never store or display a bag in direct sun or on a hot windowsill |
| Deformation | Leather takes a set; handles crease, sides collapse | Use the shaper or acid-free tissue; never hang a heavy bag by its strap |
| Contact and chemicals | Sunscreen, perfume, denim dye, ink transfer | Handle with clean dry hands; keep bags off treated surfaces |
Hardware — the clasps, feet and chain straps — tarnishes in salt air. That is a chemical reaction, not neglect, and it is not yours to polish. Metal polish on hardware runs onto leather and stains it forever.
Exotic skins
Crocodile, alligator, python, lizard and ostrich are more sensitive than calf, not less. The scales lift and curl when the skin dries out or gets wet, and water spotting is often permanent. Handle them with two hands, never by one scale, and never let them touch water.
Exotic skins also carry a legal problem. Species used in luxury goods are typically listed under CITES, the international convention on trade in endangered species, and moving them across borders can require permits and documentation. If a guest asks you to pack, ship, courier or carry an exotic-skin item off the vessel, you do not make that decision. You tell the chief stew, who tells the captain or purser. It is a customs matter, and a crew member carrying an undocumented crocodile bag through an airport is the person who gets arrested.
Never "feed" the leather
Conditioners, creams, oils, waxes and "leather feed" are for people who know the specific hide and finish. Applied to the wrong leather they darken it, blotch it and strip the finish. Suede is worse — it marks from water, oil and pressure, and it cannot be brushed back by an amateur. Do not apply anything to a guest's leather without written instruction.
The three destroyers
Across everything in this course — watches, jewellery, bags, sunglasses — the same three substances do most of the damage: sunscreen, perfume and salt. They are on the guest's hands and in the air every single day of a charter. Assume every surface a guest has touched carries all three.
Onboard Notes
- Dust bag and shaper, ventilated locker, never plastic. That is the whole storage rule.
- Mould needs ten humid days, not ten years.
- Exotic skins are a customs question. Escalate, never decide.
- No creams, oils or "feed" without written instruction.