The Uniqlo extra-fine merino turtleneck was folded so small it fit in my palm, and that should have been the first warning. Three layers for ten days in one personal item sounds clever until you're standing in the ginkgo-lined streets of Samcheong-dong with a sunburn stripe across your collarbone where the neckline gaped.
Seoul in fall sits between 10 and 20 degrees Celsius, which sounds manageable until you realize that's the range where you alternate between sweating and freezing every twenty minutes.
I took the AREX express from Incheon Airport because I refuse to waste daylight. Forty-three minutes and you're at Seoul Station without the traffic anxiety. The train smells like coffee and the specific synthetic fiber of airport luggage, and I spent the ride reorganizing my one allowed bag to make room for the coat I'd inevitably buy.
That's the thing about Crete Spring Packing: One Bag, Two Vibes — you can get away with linen. Seoul requires armor.
The Merino Mistake and Why Cotton-Blend Saves Your Sanity
I packed three tops. That's it. One Uniqlo merino turtleneck in ivory, one & Other Stories cotton-blend button-down with 2% elastane for stretch, and a COS wool crewneck that I immediately regretted because wool itches when you sweat.
The merino was supposed to be my workhorse — odor-resistant, temperature-regulating, the holy grail of one-bag travel. And it is, mostly. But merino has this tricky transparency in certain lights, and the neckline on this particular cut sits wide enough to create that dreaded V of sunburn between your scarf and your skin.
The cotton-blend shirt saved me. It has enough give that I could layer it under the crewneck without looking like a sausage, and the fabric weight blocked the UV that the merino let through. I wore it for three days straight in Myeongdong, where the K-pop leaks from every cosmetics storefront at volumes that make conversation impossible.
You don't need clean clothes as much as you need clothes that don't smell like subway, and the cotton held up better than expected against the 18-degree sun.
Unlike Mykonos Fall Style: One Bag, Two People, Zero Changes, traveling solo means you can't share the shampoo or the blame when your outfit fails. The merino breathed beautifully, but it didn't protect. I kept touching the sunburn stripe, feeling the heat, thinking about how I'd packed three lipsticks but no SPF.
Myeongdong's Soundtrack and the ₩8,000 Lunch
The pastels were a gamble. Blush, oat, stone — colors that reflect light when you're hot and photograph like a dream against gold leaves. I walked the Myeongdong shopping district for four hours, past stores playing BTS then Twice then NewJeans at decibels that vibrated in your ribs.
The streets smell of sugar and roasting sweet potatoes and that specific chemical tang of street food stalls frying dough at 2,000 degrees.
I found a corner place with mismatched chairs and a chalkboard menu, ordered a bibimbap lunch set that came with seven side dishes and a metal spoon that conducted the cold directly into my fingers.
The rice was still crackling from the stone pot. It cost ₩8,000 — about €5.50 — and lasted me until dinner. I sat there rubbing my calves and watched a group of office workers pour soju for their elder colleague, both hands on the bottle, heads bowed slightly.
I'd read about the age hierarchy rules, but watching it happen made me tuck my freezing hands into my pockets and wonder if my scuffed shoes were disrespectful.
Oh and I learned that lightweight merino wrinkles differently than heavy cotton — it doesn't crease, it collapses. By day four I looked rumpled in a way that felt intentional, which is the best you can hope for.
Beach to Town Transition in Bukchon
The outfit was built for a flat, coastal boardwalk, not for scaling Bukchon Hanok Village. I brought my Everlane Day Glove flats because they're supposed to work for cobblestones. They're liars. The village is all stone steps and 45-degree angles, and by the time I reached the tea house near the top, my heels were screaming.
The temperature had dropped to 12 degrees by five, and I was that person shivering in a doorway while trying to look aesthetic in my soft pastel mix.
This is where the beach-to-town concept died. The COS trousers, which are wool with a cotton lining, chafed at the inner thigh in a way that made me wish for the Lululemon Align leggings I'd left at home.
I wanted to transition from outdoor exploration to indoor tea ceremony seamlessly, but the wind cut through the merino layer like it wasn't there. I accepted the barley tea with both hands, my milky white minimal nails looking almost translucent against the ceramic cup, and tried not to wince when I sat cross-legged on the floor.
The tea tasted like roasted corn and warmth. Through the window, the ginkgo trees were turning that specific gold that looks filtered even when it's not. My nails tapped against the cup as I thought about how I'd planned this look for Instagram, not for actual stone steps.
Starfield Library and the Color I Didn't Pack
By day three, I'd abandoned the crewneck entirely. The Uniqlo turtleneck went back on, layered under a thrifted blazer I'd found in Hongdae, and I finally felt like myself. I was sitting on the floor of Starfield Library in COEX Mall, looking up at the three-story bookshelves, when I noticed my hands.
My milky white minimal nails — which I'd done the night before flying, thinking they'd be invisible and practical — were catching the fluorescent light against the spine of a Korean poetry collection.
That's when I realized colorful nails are a personality trait I don't have, and I missed them. Everyone in Myeongdong had cherry red or mint green or that specific peach that only looks good on Seoul subway ads.
I had librarian fingers. They were clean, sure, and they didn't clash with the pastel outfit, but they told nobody anything about who I was.
The library itself smells like paper and the faint chemical scent of new shopping bags from the mall below. I stayed until nearly seven, when the light outside turned the color of the leaves I'd been photographing all week.
If you're wondering about safety for solo trips like this, I approach cities with the same awareness I wrote about in Is El Salvador Safe to Visit? 7 Compelling Reasons to Plan Your Trip Now — Seoul requires sharp elbows in the subway and soft hands in tea houses.
What Seoul Weather Actually Feels Like
The forecast isn't just numbers. It's 20 in the sun with no wind, 10 in the shade with a breeze, and something unknowable inside the metro cars where the heating is aggressive. I spent the mornings peeling layers off and the evenings shivering through dinner.
The pastel mix worked because it reflected light when I was hot, but I needed a scarf. Not a cute silk one — a wool one that could actually cover the gaping neckline that gave me the sunburn.
I got the burn while walking from Anguk Station to Bukchon, around ten in the morning, when the sky was that particular Seoul blue that makes you forget sunscreen. The merino breathed beautifully, but it didn't protect. I kept checking the mirror in phone screens, watching the line darken.
Oh and the AREX ticket costs less than a fast-food meal in the airport, but there's an all-stops train that takes longer and smells like fried chicken instead of coffee. I learned that on the way back when I was too broke from skincare shopping to afford the express.
What I'd Pack Differently for Seoul
Next time, I'd bring the Lululemon Define jacket instead of the blazer. It packs smaller and handles the temperature swings better. I'd swap the COS wool for a Uniqlo Heattech turtleneck in forest green — something that hides the inevitable pollution dust and doesn't show water stains when it rains unexpectedly.
I'd paint my nails cobalt blue before the flight. Something that says I tried, even when I'm wearing the same trousers for the fifth day. And I'd leave room in my personal item for a proper scarf to fix the neckline issue.
The ginkgo trees drop their leaves all at once, usually in late October. I missed peak shedding by a week, which means I have to go back. I'll have the right neckline and nails that match the season.
How do you dress respectfully for traditional areas like Bukchon Hanok Village?
Wear shoes that handle stone steps — my Everlane Day Glove flats failed miserably on the 45-degree angles. The & Other Stories cotton-blend shirt layered under a blazer kept me covered for tea house visits where I had to accept drinks with both hands as a sign of respect for elders.
Is the AREX express worth the cost compared to the all-stops train?
The express gets you to Seoul Station in under an hour with seats that smell like airport coffee and luggage. The all-stops alternative costs half as much but takes significantly longer and smells predominantly of fried chicken and crowded commuters.
What fabric works best for Seoul's unpredictable fall temperatures?
Skip the Uniqlo merino turtleneck if it has a wide neckline — the odor-resistant quality is useless when the fabric transparency lets sunburn through. Instead, pack a cotton-blend shirt with 2% elastane that blocks UV and stretches enough for subway straps and tea house floors.
How do you pack light for Seoul with only a personal item?
Bring exactly three tops including one thrifted blazer purchased in Hongdae, and leave room for a wool scarf you didn't pack. My mistake was bringing three lipsticks and no sunscreen, prioritizing color over protection against the 18-degree sun.
Are minimal nails practical for Seoul travel photography?
Milky white minimal nails disappear in photos against ochre walls and look washed out under the fluorescent lights of Starfield Library. The cherry red and mint green manicures I saw in Myeongdong would have shown up better against the gold ginkgo leaves and poetry collections.
