One pair of shoes for a whole trip: what the single pair has to do and where it fails

Footwear is the heaviest thing you are not carrying in the bag, and one pair is achievable for most trips if it is chosen against the right criterion.

The criterion is not comfort at hour one, it is hour eight on hard ground
Almost anything feels fine in a shop. What decides a trip is how a shoe behaves after a full day on pavement, which is what travel actually involves regardless of the scenery.

What a single pair has to survive

• Long days on hard surfaces, which is the main event.
• Rain, and drying overnight in a room. This is where many otherwise good shoes fail; a thick padded shoe stays wet for two days.
• Looking acceptable indoors, in a restaurant or an office.
• Airport security, meaning easy on and off.

What tends to work
A trail runner or a low-profile shoe with a reasonably stiff sole, in a dark plain colour, half a size up. Mesh dries fast, which matters more than waterproofing: a waterproof shoe that gets wet inside stays wet, and a breathable one that gets wet dries overnight.

Where one pair genuinely fails

• Anywhere requiring a swim or a communal shower, which is what the tiny second option is for.
• Formal requirements. If one evening needs proper shoes, that is a real second pair and there is no way around it.
• Serious cold, where you need volume for thick socks.

The compromise most people land on: one main pair worn on travel days, plus something minimal and flat that weighs almost nothing for showers and evenings. Not two pairs of shoes; one pair plus a fallback.

Buy them early and walk in them for weeks. A new pair on day one of a trip is how a trip gets ruined.