New Trip Updated: 2026.03.31

How to Choose the Best Bag for an Overnight Domestic Trip: Suitcase vs. Backpack

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A one-night trip is a popular way to enjoy a quick getaway, whether it's relaxing at a hot spring inn or exploring a new town.

However, when planning such a trip, a common dilemma is "what kind of bag should I bring?"

 

Even if you don't have much to pack, choosing a bag without much thought can lead to inconvenience during transit or finding that your belongings don't fit. Selecting the perfect bag for your one-night stay can significantly enhance your travel comfort.

 

This article provides a clear explanation of how to choose a suitable bag for a one-night trip, categorized by type and scenario.

Use these tips to find the perfect bag that matches your travel style.

table of contents

1. Choosing the Right Bag for an Overnight Trip: Three Key Points

　・Capacity (How many liters is a good guideline?)

　・Compatibility with modes of transport

　・Purpose and scene of travel

2. By Bag Type: Characteristics and Suitability

　・Suitcase (carry-on size)

　・Backpack

3. Recommended Selection by Scene

　・Hot spring and sightseeing trips

　・Travel with friends/as a couple

　・Business/Travel

4. New Trip Hard Case Lineup

　・For active travel/business trips: New Trip 2201 Backpack

　・For trips where you want to pack light: New Trip 0201 Suitcase

5. Summary

FAQ (Frequently Asked Questions)

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一、一泊旅行のバッグ選び、三つのポイント

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When choosing a bag for an overnight trip, having a few criteria in mind can help you make a decision more easily.

First, let's cover the following three key points:

・容量（何リットルが目安？）

For an overnight trip, a 20-40 liter bag is generally sufficient for clothes, toiletries, and small items.

If you're a light packer, 20-30L should be enough, but if you tend to buy souvenirs or need extra seasonal clothing, 30-40L is a good guideline.

Using a bag that's too large can be cumbersome when traveling, so it's important to choose the right capacity.

・移動手段との相性

The best bag shape depends on your mode of travel.

If you're using public transportation like trains or buses, a compact, easy-to-carry bag is convenient.

If you'll mainly be traveling by car, a slightly larger bag isn't an issue.

And if you'll be doing a lot of sightseeing on foot at your destination, a backpack that leaves your hands free will also come in handy.

・旅行の目的・シーン

If you're going on a hot spring trip or to a resort hotel, style is one of the criteria you consider.

If you're traveling for business, the ability to store documents and a PC is also important.

You'll find a more satisfying bag if you choose one while imagining "what kind of trip you want to have."
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二、バッグの種類別：特徴と向き不向き

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For overnight trips, there are two main types of bags: suitcases and backpacks.

Let's look at the characteristics and pros and cons of each.

・スーツケース（機内持ち込みサイズ）

For an overnight trip, the standard suitcase is an S-size (around 40-50L) that can be carried on board.

Hard-shell types can be rolled on wheels, reducing the strain on your body even with heavy luggage, making them easy to transport over long distances. A key advantage is that they help keep your belongings neatly organized and prevent clothes from wrinkling.

 

On the other hand, they can be difficult to roll on uneven surfaces like cobblestones or gravel paths, and may feel inconvenient in places with many stairs. However, for stays at hotels or ryokans, where travel destinations are relatively well-maintained, they are a very convenient option.

・バックパック

The greatest advantage of a backpack is that your hands are always free.

This freedom of movement is a major advantage when traveling, whether you're moving between tourist spots or enjoying activities.

It's easy to manage when getting on and off trains or in crowded places, and you can easily stop by places where a suitcase might be cumbersome.

 

However, since you'll be carrying your luggage on your back, you need to pack carefully to avoid making it too heavy. Also, be aware in advance that it can be difficult to retrieve items from a backpack and that clothes are more prone to wrinkling.
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三、シーン別おすすめの選び方

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Now that we understand the characteristics of the bags, let's look at which one is more suitable for different travel scenarios.

・温泉・観光旅行

For trips primarily involving stays at hot spring inns or hotels, a suitcase is recommended.

After check-in, you can leave your bag in your room, so you won't have to worry much about carrying too many items while moving around.

Stylish suitcases that look great at the entrance of a ryokan or in photos at your destination enhance the sense of an extraordinary experience.

 

However, if you plan on walking around many sightseeing spots, it's convenient to bring a sub-bag for local transportation.

・友人・カップル旅行

Backpacks are great for trips with friends or romantic getaways that involve a lot of active movement.

The advantage is being able to move around freely, whether you're walking around tourist spots with your luggage on your back or stopping by a cafe.

Also, if you can pack light, combining it with a compact suitcase is a good option.

・ビジネス・出張

When traveling overnight for business, the top priority is to safely store your PC and documents.

Business backpacks increasingly feature well-padded PC compartments and designs that complement a suit.

For situations involving a lot of movement where you want to appear smart, a carry-on size suitcase is also a reliable option.
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四、New Tripのおすすめ商品紹介

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Here are two models from New Trip, perfect for your overnight trips.

・アクティブな旅・出張には：New Trip 2201 リュックサック

This 30L backpack can comfortably store enough luggage for an overnight trip. It features a dedicated laptop pocket and a USB/Type-C charging port, making it ideal for business trips. The expandable capacity provides peace of mind if your belongings increase. With a hidden anti-theft pocket on the back and waterproof functionality, you can enjoy walking around tourist areas with confidence. Its 3-way design, allowing it to be used as a shoulder bag or handbag, is also an attractive feature.

New Trip 2201 リュックサック

通勤・出張におすすめ

New Trip 2201 リュックサック

30L・47×30×17cm｜PUレザー

PC専用ポケット 3WAYマルチ 拡張機能 USB充電（USB+Type-C） 防水機能

¥13,680

商品を見る

・荷物をすっきりまとめたい旅には：New Trip 0201 スーツケース

This 40L S-sized suitcase is the perfect capacity for an overnight trip. Weighing just 2.8kg, its ultra-lightweight design minimizes the burden on your body even during long journeys. With an expansion feature, you can rest assured even if you bring back more souvenirs. Equipped with a TSA lock, security is also fully ensured.

New Trip 0201 スーツケース

国内旅行・短期旅行におすすめ

New Trip 0201 スーツケース

Sサイズ・40L｜ABS+PC

超軽量（2.8kg） 拡張機能 TSAロック 高コスパ

¥13,580

商品を見る
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まとめ

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When choosing a bag for an overnight trip, what's more important than the amount of luggage is "how you'll move around during the trip."

If you're going to walk around tourist spots, a backpack is best; if you're leisurely heading to a hotel or ryokan, a suitcase. Choose according to your travel style.

 

At New Trip, we offer suitcases and backpacks perfect for overnight trips.

Please find your favorite travel partner.

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FAQ（よくある質問）

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Q1. 一泊旅行に必要なバッグの容量はどれくらいですか？

A1：一泊旅行であれば、20〜40Lが目安です。荷物が少なめな方は20〜30L、季節の衣類やお土産が増えやすい方は30〜40Lを基準に選ぶと良いでしょう。

Q2. スーツケースとバックパック、どちらが一泊旅行に向いていますか？

A2：旅のスタイルによって異なります。観光地を歩き回ることが多い旅行にはバックパック、ホテルや旅館への宿泊がメインであればスーツケースが使いやすいでしょう。

Q3. 一泊旅行にスーツケースを持っていくのは大げさですか？

A3：そんなことはありません。キャスターで転がせるスーツケースは体への負担が少なく、荷物を整理しやすいのが魅力です。Sサイズのコンパクトなモデルであれば、一泊旅行にも十分フィットします。

Q4. 公共交通機関での移動が多い場合、どちらがおすすめですか？

A4：バックパックがおすすめです。電車の乗り降りや混雑した場所でも取り回しがよく、階段の多い駅でも両手が空くので移動がスムーズです。

Q5. 出張を兼ねた一泊旅行にはどんなバッグが向いていますか？

A5：PCや書類を安全に収納できるバックパックが便利です。ビジネス向けモデルはPC専用ポケットが充実しており、スーツ姿にも馴染むデザインのものも多くあります。

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