Is a Hydration Pack a Necessary Addition for Long Hikes?

Whether you’re heading out for a quick hike or planning a multi-day trip in the backcountry, picking the right backpack makes a big difference. A good backpack should not only fit your gear—it should fit you comfortably too. Our guide will help you choose the best one for your needs.

Backpack Sizes for Hiking

The size of your backpack depends on three main things:

1. How long your hike is
2. The environment or terrain
3. The season and expected weather

These factors will help you figure out what gear to bring, and that tells you what size pack you’ll need.

Day Hike Backpacks (Under 25L)

For short hikes, you’ll only need the basics—water, a light jacket, snacks, and maybe trekking poles.

• Thule Stir (18L, 20L)
  Lightweight and easy to pack and unpack
• Thule AllTrail (15L)
  Compact and organized for essentials

Overnight Hike Backpacks (25–35L)

For one-night trips, pack light to keep things easy and enjoyable. These also work well for longer day hikes.

• Thule Stir (25L, 35L)
  Lightweight with quick-access pockets
• Thule AllTrail X (25L, 35L)
  Great for all seasons with men’s and women’s fits

Also Read: What is the Best Adventure Backpack for Off‐Road Travel?

Multi-Day Backpacks (40–50L)

For trips lasting 2–4 days, you’ll need room for extra food, clothing, and camping gear.

• Thule AllTrail (45L)
  Adjustable torso, padded straps, and hipbelt for comfort
  Men’s and women’s options available
• Thule Stir Alpine (40L)
  Comes with ski straps, tool storage, and a removable lid to lighten the load

How to Choose a Backpack That Fits Your Body

Even the best backpack will feel uncomfortable if it doesn’t fit you right. To find your ideal pack, you need to know two things: your torso length and hip size.

Measuring Torso Length

Your height doesn’t matter as much as your torso. If the pack is too long or too short, the weight won’t sit right and you’ll feel it.
To measure:

• Tilt your head forward and find the bony bump at the base of your neck (C7 vertebra).
• Measure straight down to the point on your back that lines up with the top of your hip bones.

Measuring Hip Size

Backpacks should rest mostly on your hips—about 80% of the weight should be carried there, not on your shoulders.
To measure:

• Wrap a flexible tape around the top of your hips (a little higher than your waistline).
• This number is usually different from your pants size.

Some Thule packs have adjustable torso and hip sizes. Others don’t, so it’s important to check the fit guide to find what works for your body.

Also Read: How do I Maintain and Clean My Adventure Gear Properly?

Features to Consider

Here are some features that can really improve your hiking experience:

• Ventilation
  Some packs have built-in airflow systems to keep your back cool and dry.
• Access Points
  Smaller packs usually open from the top. Larger ones might have top, bottom, or full-zip openings so you can reach your stuff quickly.
• Removable Lid
  Some lids can be turned into small daypacks—perfect for quick hikes from base camp.
• Hydration Compatibility
  Most Thule packs have space for water bottles and a sleeve for a hydration reservoir.
• Sleeping Bag Compartment
  Keeps your sleeping bag separate, clean, and dry.
• Rain Cover
  Weather can change fast. Some Thule packs have a built-in rain cover, or you can buy one separately.

Also Read: What Outdoor Brands Offer the Most Durable Backpacks for Rough Terrain?

Hydration Packs

Staying hydrated is key on any adventure. Hydration packs make it easier by letting you drink without stopping. Plus, they carry more water than a bottle. They’re great for mountain biking or long hikes.

Want to know more? Check out our full guide or browse our hydration packs online.