New Trip Editorial Department Last Updated: 2026.07.14

The Best Suitcases for a 7-Night Overseas Trip: How to Choose Based on Season and Destination, Plus 3 Top Picks

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Hello from the New Trip editorial team.

"For a 7-night overseas trip, what suitcase capacity in liters do I need?" "Should I choose an M size or an L size?"

—Many people have these kinds of questions.

 

For a 7-night overseas trip, a capacity of generally 60-90L is required.

However, the optimal size varies greatly depending on the season, destination climate, and your travel style.

 

This article will thoroughly explain everything from how to choose the best suitcase for a 7-night overseas trip,

to capacity guidelines by season and destination, and recommended models.

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Table of Contents

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1. Check airline baggage policies

2. Choosing a suitcase size for a 7-night trip

3. Material Selection

4. Importance of Caster Performance

5. Useful functions for a 7-night trip

6. Top 3 Recommended Suitcases

7. Conclusion

Frequently Asked Questions (FAQ)

一、航空会社の荷物規定をチェック

When traveling overseas for seven nights, you'll almost always check your suitcase as luggage. Therefore, before choosing a suitcase, first check your airline's regulations.

航空会社 重量制限（エコノミー） サイズ制限
ANA・JAL 20kg〜23kg 3辺合計158cm以内
LCC（格安航空会社） 15kg〜20kg（有料） 航空会社により異なる
欧米系航空会社 23kg 3辺合計158cm以内

Exceeding the stipulated weight or size will result in expensive excess baggage fees.

Therefore, the lightness of the suitcase itself is important not only for packing more luggage but also for reducing the risk of excess charges.

 

👉Tip: For a 7-day trip, choosing a lightweight model with a body weight of 4-5 kg or less will allow you to pack clothes and souvenirs with plenty of room.

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二、7泊旅行のスーツケースのサイズ選び方

サイズと容量の基本

For a 7-night international trip, a capacity of around 60 to 90 liters is generally ideal. However, this range is quite broad, and the actual capacity needed can vary significantly depending on the season and destination of your trip.

容量 適した期間 向いている人
60-70L 7泊程度 荷物が少なめ、夏季旅行
70-80L 7-10泊 標準的な荷物量
80-100L 10泊以上 荷物が多い、冬季旅行、お土産重視

If you plan to buy souvenirs at your travel destination, it's a good idea to pack your luggage to only about 70-80% capacity on the way there, leaving room for your return.
👉 Tip: If you're unsure, choosing a model with an expansion feature is convenient, as it allows you to travel compactly and increase capacity for the return trip.

季節・目的地別の容量目安

Even for the same seven-night stay, the required capacity varies greatly depending on the season and destination.

Here are some typical patterns.

・7-night summer trip (Taiwan, South Korea, Southeast Asia, etc.)

Luggage characteristics:
・Clothing is light and minimal, but small items like sunscreen, hats, and sunglasses increase.

・Souvenir space is needed (especially for Taiwan/Korea).

Recommended capacity: 70-90L (around 60L is fine if it has an expansion feature)

Notes:

・Pack to about 80% capacity for the outbound trip to leave space for souvenirs on the return.

・Be aware of restrictions on bringing liquids (cosmetics, sunscreen).

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・7-night winter trip (Europe, North America, etc.)

Luggage characteristics:

・Thick clothing such as coats, sweaters, and boots

・Cold weather items (gloves, scarves, hats)

・Bulky clothing that takes up a lot of space

Recommended capacity: 100L or more
Points to note:

・Be mindful of the suitcase's own weight (thick clothing tends to make it heavy)

・Compression bags can help save space

・Wearing your coat on the plane can save space in your suitcase

・Resort/Beach Resort (Hawaii, Guam, Maldives, etc.)

Luggage characteristics:

・Light clothing such as swimwear, flip-flops, and sunglasses

・However, bulky items like towels and beach bags are also included

Recommended capacity: 80-90L

Notes:

If you rent marine sports equipment locally, you can reduce your luggage

Allow for extra space if you plan to buy shells or souvenirs on the way back

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・Business trips (mainly to urban areas)

Luggage characteristics:

・Suits and formal wear

・Work tools such as PC, documents, and chargers

・Wrinkle-resistant storage is important

Recommended capacity: 70-90L

Recommended features:

・Front-opening (for easy access to PC and documents)

・Garment storage (to store suits without wrinkles)

・USB charging port

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三、素材の選び方

For a 7-night overseas trip, you will almost always check a suitcase. Considering how luggage is handled at the airport, a hard case is recommended, as it is impact-resistant and can properly protect the contents.
 

The main materials for hard cases include polycarbonate (PC), ABS resin, and PC+ABS composite material.

Polycarbonate, in particular, is lightweight yet highly durable, making it ideal for long trips.

 

👉Key point: For trips of 7 nights or more, polycarbonate, which offers both lightness and durability, is recommended.

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四、キャスター性能の重要性

A suitcase packed for a 7-night trip can weigh anywhere from 15kg to 20kg. Considering the long distances you might have to walk in the airport and on the way to your hotel, the quality of the casters can significantly impact your comfort.

特に重要な機能

  • Double casters:
    Ensures stable pulling even with heavy luggage. Smooth direction changes with 360-degree rotation.
  • Brake system:
    Prevents the suitcase from moving on its own in trains, buses, or on slopes. Especially convenient for travel using public transport.
  • Quiet operation:
    Allows consideration for others when moving between hotels early in the morning or late at night. No concerns about noise in airports or stations.


👉 Key point: For a 7-day trip, as the travel distance will be longer, always check the smoothness and quietness of the casters.

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五、7泊旅行で役立つ機能

When choosing a suitcase, security and features that enhance convenience are also important.

TSAロック

When traveling to the United States (including Hawaii, Guam, and Saipan), if you are using a lock other than a TSA lock, your lock may be broken during baggage inspection. With a TSA lock, TSA officers can unlock and relock it using a special tool, so there is no need to worry about your lock being broken.

拡張機能

The ability to expand capacity is extremely useful, anticipating an increase in luggage due to souvenirs when returning home. It is especially recommended if you plan to buy many souvenirs, such as for summer trips to Asia.
・Note: When expanded, the bag may exceed carry-on size limits, so it will need to be checked.

その他便利な機能

・USB charging port: Charge your smartphone at the airport or while on the go

・Cup holder/hook: Hold drinks and hang small bags, keeping your hands free

・Internal organization: Mesh pockets, tie-down straps, and other features to easily organize your belongings

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六、おすすめのスーツケース3選

Here are three models of New Trip and MONOMI suitcases that combine functionality and design, perfect for a 7-night overseas trip.

移動重視・軽量性を求めるなら｜New Trip 0201 Plus

  • Capacity: 60L (74L when expanded)
  • Weight: 4.2kg
  • Key Features: USB charging port, cup holder, stopper, expansion function
  • Recommended for:
    Lightweight for easy movement within the airport
    Convenient USB charging port for use on the go
    Expandable for souvenirs
    Ideal for summer trips to Asia or those with lighter luggage
New Trip 0201Plus

デザイン重視・女性におすすめ

New Trip 0201Plus スーツケース

Mサイズ・60L｜100%PC

拡張機能 USBポート ストッパー付き ドリンクスタンド

¥27,980

商品を見る

大容量・家族旅行なら｜New Trip 0211

  • Capacity: 105L
  • Weight: 4.6kg
  • Key Features: Stopper, five-wheel design, large capacity design, hanging hook
  • Recommended for:
    Ideal for winter travel and long stays due to its large capacity
    Easy to move even with a lot of luggage thanks to its five-wheel design
    Easy to organize with multi-functional storage pockets
    Recommended for winter trips to Europe and those with a lot of luggage
New Trip 0211

1台にまとめたい家族旅行

New Trip 0211 スーツケース

Lサイズ・105L｜100%PC

五輪設計 TSAロック 大容量設計 物掛けフック

¥29,980~

商品を見る

デザイン重視・女性におすすめ｜MONOMI 0801

  • Capacity: 95L (104L when expanded)
  • Weight: 4.8kg
  • Key features: Expandable, quiet casters, hanging hook, TSA lock
  • Recommended for:
    Those who want a colorful and unique design
    Those who want to be considerate of others with quiet casters
    Those who want practical features such as a hanging hook and cup holder
    Those who want both design and functionality
MONOMI 0801

デザイン重視・女性におすすめ

MONOMI 0801 スーツケース

Lサイズ・95L｜ABS+PC

拡張機能 TSAロック 静音キャスター 物掛けフック

¥17,680

商品を見る
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七、まとめ

For a 7-night overseas trip, a capacity of 60-100L, along with lightweight design, good caster performance, and expansion features are important.

 

Specifically, to stay within the checked baggage weight limits (20kg-23kg),

choosing a lightweight suitcase model that weighs 4-5kg or less allows you to pack more clothes and souvenirs.

 

Also, since the necessary capacity varies depending on the season and destination,

a guideline of 60-80L for a summer trip to Asia and 100L or more for a winter trip to Europe will help you avoid making a mistake.

 

Choose the optimal suitcase that matches your travel style and luggage volume.


👉 View on the New Trip Official Store

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よくある質問（FAQ）

Q1. 7泊の旅行に60Lは小さすぎますか？

A1：夏場の旅行で荷物が少なめであれば、60Lでも十分対応できます。
ただし、お土産を多く購入する予定がある場合は、拡張機能付きモデルや70L以上の容量を選ぶと安心です。

Q2. 冬のヨーロッパ旅行には何リットル必要ですか？

A2：冬のヨーロッパ旅行では、コートやセーターなど厚手の衣類がかさばるため、100L以上の大容量モデルがおすすめです。
圧縮袋を活用すると、限られた容量でも収納スペースを有効に使えます。

Q3. 拡張機能は本当に必要ですか？

A3：帰りにお土産や購入品が増えることが予想される場合、拡張機能があると非常に便利です。
特に台湾や韓国など、現地で買い物を楽しむ旅行では重宝します。

Q4. LCCを利用する場合の注意点は？

A4：LCCは預け入れ手荷物が有料で、重量制限も厳しい傾向があります。
航空会社によって異なりますが、15〜20kg程度の制限が設定される場合があるため、スーツケース本体が軽量であることが重要です。

Q5. TSAロックは必須ですか？

A5：アメリカ（ハワイ・グアム含む）へ渡航する場合は、TSAロック付きモデルがおすすめです。
その他の地域でも、セキュリティ面で安心感があるため、海外旅行ではTSA対応モデルを選ぶと安心です。

Q6. ビジネス出張におすすめの機能は？

A6：ビジネス出張では、フロントオープン、USB充電ポート、ガーメント収納などの機能が便利です。
PCや書類をすぐに取り出せるため、空港や駅での移動効率が向上します。

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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