New Trip Updated: 2026.03.19

How to Choose a Suitcase for International Travel | 4 Recommended TSA008 Compliant and Highly Durable Suitcases

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It's been a while since my last overseas trip.

While expectations are rising, there are also concerns about long-distance travel and security in a foreign country.

There are also concerns about luggage.

The key to a successful overseas trip is

The key is to choose a "reliable suitcase" that is suitable for the environment of your destination.

In this article, we will summarize the important points to keep in mind when choosing a suitcase for overseas travel.

Introducing the popular New Trip models equipped with the latest specs.

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table of contents

1. How to choose the best suitcase for overseas travel

2. Four NewTrip suitcases recommended for overseas travel

3. Buy or rent? How to choose the best fit for you

4. Precautions when using suitcases when traveling abroad

5. Summary

VI. Frequently Asked Questions (FAQ)

7. Summary

一、海外旅行のスーツケースサイズは何Lが目安？

Unlike domestic travel, when traveling abroad, three things are extremely important: durability, security, and drivability.

Let's choose based on the following points:

宿泊日数別の容量目安

宿泊数 容量 サイズ表記
1〜3泊 30〜40L S
4〜6泊 50〜70L M
1週間 70〜90L L
10日以上 90L以上 LL

When traveling abroad, your luggage tends to increase with souvenirs and extra clothes.

  • Recommended volume: 10L to 15L per day.
    3-5 nights (Asia, etc.): 60-80L (M size)
    More than one week (USA, Europe, etc.): 90L or more (L size)

行き先別のおすすめサイズ

  • Checked baggage restrictions: Many airlines have a limit of 158cm for the total of three dimensions of free checked baggage. When choosing an L size, it is a good rule of thumb to choose a model that does not exceed this limit (such as the L size of NewTrip). The material of the suitcase has a significant impact on the weight, durability, and protective performance. There are two types of suitcases: hard and soft.
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📚New Trip Editorial Team Memo:
When choosing, it's better to select a slightly larger size than "just right" to avoid regrets. We've heard many stories from customers who bought an extra bag at their destination because their souvenirs didn't fit.

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二、海外旅行で失敗しないスーツケースの選び方

Depending on your overseas travel destination and purpose,

We've carefully selected New Trip 's most popular models so you can choose the perfect one for you.

耐久性で選ぶならポリカーボネートがおすすめ

This latest model simultaneously addresses two of the biggest concerns for international travelers: security and baggage restrictions.

  • Equipped with the latest TSA008 lock: Adopts the latest TSA008 standard for 2026. Allows for safer and smoother passage through security checks even at airports with strict security measures.
  • Maximum storage efficiency: The design minimizes unnecessary external parts, maximizing the internal capacity while maintaining the same external dimensions. Ideal for overseas travel where you want to buy lots of souvenirs.
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📚New Trip Editorial Team Notes:

When traveling internationally, baggage handling by airport staff can be rougher than on domestic flights. In fact, a common issue in repair consultations is not damage to the center of the body, but rather damage to the corners. For this reason, our editorial team recommends models with corner pads.

長距離移動ならキャスター性能を重視

This high-performance model is designed for those who prioritize comfort during long-distance travel, especially in Europe where cobblestone streets are common.

  • HINOMOTO Silent Casters: Made by Japan's "Hinomoto Locks," these casters are incredibly quiet and smooth, even on rough roads overseas. They dramatically reduce fatigue during travel.
  • Zinc alloy corner pads: Metal parts protect the corners that are prone to impact. Safe for international flights where luggage tends to be handled roughly.

TSAロック対応モデルを選ぶ

It is very useful for long trips of more than a week, such as to the United States or Europe, or when you want to consolidate all of your family's luggage into one car.

  • 3:7 large capacity square design: One side is extra deep, allowing you to pack bulky winter clothes, shoes, electrical appliances, etc. with ease.
  • Stable five-wheel design: The central training wheel firmly supports heavy luggage, allowing you to easily move it through spacious airport lobbies with little effort.

🔗Related article:Do you need a suitcase lock for international travel? How to choose between TSA and other locks"

158cmルールを確認する

This is a capable entry-level model that's perfect for those who want something good that's as lightweight and affordable as possible.

Amazing "Ultra-Lightweight" Design: When traveling abroad, airlines have strict weight restrictions, so a lightweight suitcase is a major advantage. The 0201's innovative materials and design make it ultra-lightweight, allowing you to pack more souvenirs and luggage.

Capacity expansion function for peace of mind even if you bring more souvenirs: If you find that your luggage has increased on your way home, you can simply open the zipper to expand the gusset and increase the storage capacity.

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📚Advice from the Editors:
When using LCCs, regulations can be even stricter. Always check the latest information from the airline you are using.
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三、海外旅行でよくあるスーツケース選びの失敗例

When considering a suitcase for overseas travel, especially a large L-size one,

Deciding whether to buy or rent can be a tough choice. Here's a summary of the advantages of each.

1. Advantages of rental services

  • No storage space needed: If you only travel abroad once a year, a large suitcase will take up a lot of space at home. If you rent one, you only need to keep it with you when you travel.
  • Try out the latest high-performance models: You can actually use the latest NewTrip models you're interested in overseas, and then consider purchasing them after you're satisfied with them.

2. Benefits of purchasing

  • Lower overall cost: If you plan to travel three or more times, buying is significantly cheaper than renting.
  • The attachment to it as your travel companion: The joy of owning a travel bag is that you can imprint "travel memories" on it as your own personal tool, whether it's by adding your own stickers or using your familiar packing methods.

容量不足でお土産が入らない

When traveling abroad, it is almost always the case that you return with more luggage than you left with.

Especially in Korea and Taiwan, there are many opportunities to buy souvenirs such as cosmetics and food, and in Europe, wine and sundries. However, if you choose a suitcase that is just barely large enough based only on the number of nights you'll be staying, you may find that your luggage won't fit on the way back.

When choosing a suitcase for international travel, it is recommended to select a capacity with a little extra room, taking into account not only the number of nights you'll be staying but also the amount of souvenirs you plan to buy.

LCCの規定を確認していなかった

Baggage size and weight restrictions vary by airline.

Especially with LCCs (Low-Cost Carriers), weight restrictions can be stricter than with full-service airlines, and excess baggage fees may be incurred at the airport.

It's not uncommon for people to make the mistake of finding their suitcase is overweight after packing, even though the size was fine.

Before purchasing, it's important to check the baggage allowance of the airline you plan to use, and consider choosing a lightweight suitcase model.

黒色のスーツケースで見分けがつかなかった

At overseas airports, you'll see a large number of black and navy suitcases.

With similar-looking suitcases flowing down the baggage carousel one after another, it can take time to find your own luggage, and sometimes it even gets mistaken by other travelers.

Indeed, we at the editorial department often hear comments like, "There were multiple suitcases that looked almost identical, and it took a long time to retrieve mine."

It is recommended to attach a distinguishing belt or tag, or to choose another color such as silver or navy.

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📚Editor's note:
We often get asked, "Should I avoid black suitcases?" and the answer is, "It's a matter of preference." However, if you do choose black, we highly recommend marking it clearly.

安さだけで選んで移動が大変だった

When traveling abroad, there are many situations where you have to move long distances with your suitcase, not only at the airport but also around train stations and hotels.

Therefore, if you choose a suitcase based solely on its price, you may find yourself dissatisfied with the maneuverability or durability of its wheels.

Especially when traveling in Europe, where there are many cobblestone streets, choosing a model equipped with double casters for quietness and durability can significantly reduce stress when moving around.
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四、購入とレンタルどちらがおすすめ？

  • Lost luggage and theft prevention: Since many suitcases look similar, attach a distinguishing belt or tag. Also, as a precaution, always keep valuables in your carry-on luggage.
  • Reconfirm airline regulations: Especially when using low-cost carriers (LCCs), weight and size restrictions can be very strict. Check the latest information from your airline in advance and be careful not to exceed size limits when using extensions such as 0201.

購入とレンタルの比較表

こんな人 おすすめ
年1回だけ海外旅行 レンタル
年2回以上旅行する 購入
家族旅行が多い 購入
収納スペースが少ない レンタル

Advantages of Renting

  • No storage space needed: If you only travel overseas once a year, an L-sized suitcase takes up a lot of space in your home.
  • Ability to try out high-performance, latest models: You can actually use a New Trip model overseas that you're interested in and consider purchasing it once you're satisfied.

Advantages of Buying

  • Lower total cost: Renting costs around 5,000 to 10,000 yen per use. If you plan to travel more than three times, buying is significantly cheaper.
  • Attachment as your travel companion: Being able to put your own stickers on it, or pack it in a familiar way, means that "travel memories" are etched into it as your personal item – a unique pleasure of owning one.
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📚Editor's advice: We recommend purchasing this if you plan to travel abroad three or more times.

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五、海外旅行におすすめのNew Tripスーツケース

So far, we've covered how to choose the right suitcase size for international travel and tips to avoid common pitfalls. To conclude, the New Trip editorial team will introduce popular models recommended for different travel styles.

New Trip 0702 Plus｜防犯性と収納力を重視する方に

When traveling abroad, managing your luggage and taking crime prevention measures are also crucial.

The 0702 Plus features the latest TSA008 lock, meeting the security performance required for international travel. Additionally, its design prioritizes storage efficiency, allowing you to pack plenty of items even with the same external dimensions.

Recommended for people who:

  • Are traveling abroad for the first time
  • Prioritize crime prevention
  • Want to bring back many souvenirs
New Trip 0702Plus スーツケース

フロントオープン・ストッパー付きモデル

New Trip 0702Plus

Sサイズ・42L｜ABS+PC素材

フロントオープン USB充電ポート ストッパー付き TSAロック

¥21,980

商品を見る

New Trip 0502｜静音性と耐久性を両立したい方に

When traveling abroad, you'll likely spend more time than you expect pulling your suitcase, whether it's at the airport, train station, or around your hotel.

The 0502 uses casters with excellent quietness and maneuverability, making it comfortable to use even on cobblestone streets common in Europe or during long-distance travel.

Additionally, it features corner pads, which are recommended for protecting against impacts when checking in your luggage.

Recommended for:

  • Those planning a trip to Europe
  • Those who prioritize caster performance
  • Those looking for a durable model
New Trip 0502 スーツケース

拡張機能・HIMONOTOキャスターモデル

New Trip 0502

Mサイズ・65L(拡張後78L)｜PC

拡張機能 USB充電ポート HIMONOTO製キャスター スマホスタンド

¥22,980

商品を見る

New Trip 0211｜1週間以上の海外旅行や家族旅行に

Large-capacity models are recommended for long trips or family trips where you tend to have a lot of luggage.

The 0211 features a design with excellent storage capacity, making it easy to store winter clothing and souvenirs all at once.

The central caster wheels firmly support heavy luggage.

Recommended for:

  • Overseas trips of 1 week or more
  • Family trips
  • Those with a lot of luggage
New Trip 0211 スーツケース

大容量・五輪設計モデル

New Trip 0211

Lサイズ・105L｜ABS+PC素材

五輪設計 大容量収納スペース TSAロック ストッパー付き

¥29,980

商品を見る
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六、FAQ（よくある質問）

Q1. 海外旅行にスーツケースは必要ですか？

A1：2泊以上の海外旅行ならスーツケースがおすすめです。容量や保護性能に優れ、お土産の収納にも便利です。

Q2. スーツケースにTSAロックがないとどうなる？

A2：アメリカ（ハワイ・グアム含む）では検査時に鍵を壊される可能性があります。アメリカ方面へ行く場合はTSAロック対応がおすすめです。

Q3. スーツケースは黒はやめたほうがいいですか？

A3：黒は人気色のため、ターンテーブルで見分けにくいことがあります。ベルトやタグで目印を付けると安心です。

Q4. 海外旅行で液体はスーツケースに入れられますか？

A4：預け入れ荷物なら液体制限はありません。漏れ防止のため、化粧水やシャンプーは密閉袋に入れて収納するのがおすすめです。

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まとめ

When choosing a suitcase for international travel, it's important not to think "the bigger, the better," but rather to select a size appropriate for your trip duration and destination.

 

Especially for international travel, not only capacity but also durability, maneuverability, and security greatly influence your comfort. It's also reassuring to check airline size restrictions and whether a TSA lock is included beforehand.

 

Choose a suitcase that matches your travel style and enjoy your international trip even more comfortably.

執筆・監修

New Trip編集部
本記事は、スーツケース・旅行用品ブランド「New Trip」の編集部により制作されました。
製品開発やユーザーの声を活かしながら、ユーザーに合ったスーツケースや、旅行・出張をより快適にするアイテムを発信しています。

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