7 super-comfortable, go-to 'travel uniforms' we swear by for planes and trains

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• Comfort is our most important consideration when choosing what to wear for a long flight or bus ride. 
• We've developed unique "travel uniforms" of comfortable clothes, underwear, and shoes that we always wear when we travel. 
• These 7 outfits feature soft, stretchy, and breathable fabrics to get us through our trips. Having a pre-planned, reliable outfit in mind also means we have one less thing to worry about as we prepare for our travels. 

Whenever I see someone well-dressed at the airport, I'm impressed. More power to them (though dressing your best may not actually snag a free upgrade), but I'm just here to get through my flight and to my final destination in the most comfortable way possible. 

I traveled more than ever last year, and I found myself developing a "travel uniform," a very specific combination of clothes and shoes that have proven to be comfortable through long plane and bus rides. Now, every time I prepare for a trip, I automatically default to this outfit so I don't have to stress over my flight survival strategy. 

Many members of the Insider Picks adopt similar uniforms when traveling. If you ever run into us at the airport or bus station, this is what we're most likely to be wearing.

Unsurprisingly, T-shirts, leggings, and sweats make the cut. Stretchy, roomy jeans are also the subject of a few love letters, and we can't underscore the importance of comfortable underwear enough. 

These 7 travel uniforms may look different, but they're all incredibly comfortable. 

Remi Rosmarin, Insider Picks reporter

1. Aviator Nation Bolt Sweatpants, $128: These are really comfortable and make it feel like you’re traveling in your pajamas, but somehow look much more put together. They might seem unnecessarily pricey for a pair of sweatpants, but they have serious longevity — the graphic stays bright and the fabric gets softer with each wash rather than fading or pilling like many other brands.

Buy it here: Bandier | Nordstrom

2. Madewell Whisper Cotton V-Neck Tee, $19.50: Comfort is the most important thing to me when picking out my travel outfit. This tee is lightweight, a little slouchy, and really comfortable. It’s my favorite T-shirt all around, so I usually bring one with me on trips, too.

Buy it here: Madewell | Nordstrom | Shopbop

3. Adidas Superstar Shoes, $80: When traveling, I like to wear shoes on the plane that I’ll also wear during my trip. These Adidas sneakers usually make the cut. They’re comfy enough for long walks exploring new cities, look nice with pretty much any outfit, and are easy to slip on and off in the security line, making them a no-brainer for me. 

Buy it here: Adidas | Nordstrom | Macy's

Brandt Ranj, Insider Picks associate editor

1. Mott & Bow Wooster Jeans, $118: Mott & Bow’s Wooster Jeans are hands-down the most comfortable pair I’ve ever worn, and a travel must-have. Their custom stretch technology gives the jeans enough give that I can sit for hours at a time without feeling constricted.

Buy it here: Mott & Bow

2. Cole Haan GrandPrø Stitchlite Running Sneakers, $140: I know, a running sneaker for air travel? Trust me. The same custom cushioning that makes them a great running shoe works wonders when you’re walking around airports.

Buy it here: Cole Haan | Amazon

3. MeUndies Underwear, $24: MeUndies are my go-to underwear all the time, but they’re especially useful when I travel. The material feels soft on my skin, the elastic band never feels too tight, and they breathe enough that I don’t get sweaty running between terminals.

Buy it here: MeUndies

4. Nice Laundry Socks, 3 for $45: Nice Laundry’s socks are loose enough to expand if my feet swell mid-flight, and come in fun patterns so I can show off some style while I travel.

Buy it here: Nice Laundry

Ellen Hoffman, Insider Picks senior editor

1. Patagonia Organic Cotton Quilt Snap-T Pullover, $149: Patagonia can do no wrong in my book. Its classic Snap-T Pullover is ultra-soft (even after many washings) and surprisingly warm given that it’s not that thick. I never worry it will wrinkle or stretch out from too much wear either.

Buy it here: Patagonia 

2. Everlane Box-Cut Pocket Tee, $16: Everlane’s T-shirts are some of our team’s favorites and they won’t set you back a lot of money, so you can stock up on these staples without hesitation. They’re a perfect base layer under my Patagonia pullover. I also really love the look and feel of Richer Poorer’s tees, but they’re double the price.

Buy it here: Everlane 

3. Madewell Classic Straight Leg Jeans, $125: I like to feel somewhat put together at the airport, which is why you’ll never catch me hustling to my terminal in sweatpants. It works for some people, and that’s great, but not me. Madewell’s straight-leg jeans are still casual and amply comfy for wear on long flights since they’re not super form-fitting.

Buy it here: Madewell  

4. Cuyana Mini Tassel Bag, $150: A crossbody bag is one of my travel must-haves. Cuyana’s Mini Tassel Bag is the perfect size to store all of my essentials I need easy access to (phone, keys, wallet, passport, sunglasses, lip balm), and since it’s worn across my body in a way that it couldn’t be easily grabbed or fall off my shoulder, I never worry about losing it. Everlane’s Form Bag is another recent favorite that is a bit roomier.

Buy it here: Cuyana

5. Marc Fisher Ltd Yale Chelsea Boot, $179.95: I really don’t understand why people wear high heels to the airport, but I see it more often than you’d think. I’m all about functional flats — at the airport, and for life in general. For warm weather, Soludos espadrilles offer my arches unbeatable comfort, and they look cute, too. For cold weather, I’ve never gone wrong with classic Chelsea boots; Marc Fisher LTD and Thursday Boot Co. make my most walkable pairs.

Buy it here: Nordstrom | Marc Fisher | Amazon