Here's how most overpacking starts: one outfit per day. That's fine for a weekend. Go past three days, though, and your bag fills up with clothes you'll wear exactly once. Past a week, it just doesn't fit. The fix the one-bag crowd swears by, and the one we'd give you at the counter, is simple: stop counting days and pack a week.
The formula
Ready? 4 tops, 2 bottoms, 5 sets of socks and underwear, and 2 pairs of shoes, with one pair on your feet. Throw in sleepwear, and one nicer outfit if the trip calls for it.
That's a full week if you rewear your tops, and any length of trip if you wash once a week. Seriously: a two-week trip and a four-week trip pack exactly the same. Underwear is the only thing that genuinely runs out, which is why it gets the biggest number on the list.
Everything has to match everything
This is the part that makes it work. A small kit only holds up if every top goes with every bottom, so pick one palette, mostly neutrals, with a color or two that plays nice with all of it. Before anything goes in the bag, ask yourself: does this go with at least two other things I'm bringing? If not, it stays home. Four tops and two bottoms that all match give you eight outfits, which is more than you'll need in a week.
Let the fabric do the heavy lifting
Since you'll be rewearing and washing, fabric matters a lot more on the road than it does at home. Here's the quick rundown:
- Merino wool resists odor, so a top easily makes it through two or three wears, and it dries overnight after a wash. It's worth the price.
- Technical synthetics dry the fastest and pack the smallest. They hold onto smells more than merino, so plan to wash them more often.
- Cotton is comfy but slow to dry. A tee or two is fine; a whole cotton kit isn't.
- Denim is heavy and bulky. Bringing jeans? Wear them on the plane.
Cold trip? Add layers, not more clothes
When it's cold out, you don't need more tops. You need layers over the same tops: a warm mid-layer, a shell that blocks wind and rain, and a hat and gloves if it's near freezing. Heading somewhere hot instead? Swap a bottom for shorts and add a hat and sunscreen. Our Trip Planner checks the forecast for your dates and adds these for you, so you don't have to guess.
Where it all goes
Pack by category: one cube for tops and bottoms, one for underwear and socks. We walk through setups for different trip lengths in How to pack with packing cubes.
With one wash planned, a week kit fits in a 20–30L bag, the same size most people use for a weekend. Without laundry, you'll want a 30–45L carry-on, and seven days of clothes is about as much as one bag can take.
The short version
If you remember nothing else:
- 1–3 days: a top per day, one pair of pants, and one more set of underwear than nights.
- 4+ days: the week kit, no matter how long you're gone.
- Wear your bulkiest shoes and layers on travel days.
- Plan one wash a week. Here's how to do laundry on the road.
This post is part of our guide to packing light for any trip, the thinking behind our Trip Planner. When you're ready, build your list →
