Best 40L Hiking Backpacks for Day and Overnight Trips

Choosing the right hiking backpack can transform an average trek into an exceptional adventure. Our comprehensive guide evaluates the best 40L hiking backpacks, comparing their features, durability, and comfort levels to help you find the ideal pack for your next wilderness expedition.

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Reviews

Rei Co-op Women’s Ruckpack 40

When you need a reliable pack for extended travel, the REI Co-op recycled ruckpack combines comfortable support with practical storage. With three-quarters of reviewers giving it a perfect 5-star rating, this 40L backpack shines in real-world testing. From European train journeys to around-the-world trips, countless users praise its thoughtful design, from well-placed pockets to stretchy water bottle holders that keep your gear secure.

Torch Travel Backpack 40L

This sleek 40-liter backpack checks all the right boxes for modern travelers, from its lightweight design to its generous 2.2-pound frame. The spacious interior keeps your gear sorted with multiple pockets and a dedicated laptop sleeve, while the breathable back system and adjustable straps ensure you’re comfy during long days on the go. The built-in rain cover adds a practical touch for those unexpected downpours, plus the convenient trolley strap lets you attach it to your bag for hassle-free security at the airport.

High-great Tech 40L Hiking Backpack

Imagine a reliable backpack that combines military-grade durability with comfortable travel features. The water-repellent nylon construction and padded back panel make it suitable for both short day hikes and longer treks. With its 40L capacity and thoughtful design elements like multiple pockets and adjustable straps, it serves as an excellent companion for both men and women who value quality gear.

Hyperlite Mountain Gear 2400 Southwest 40L Hiking Backpack

This ultralight backpack combines exceptional durability with remarkable water resistance. The Dyneema composite construction and padded shoulder straps make it incredibly comfortable for long hikes, while the rolltop closure keeps your gear dry in any weather. Whether you’re tackling steep trails or international flights, this backpack excels at keeping your load organized and accessible.

BCA Stash 40 Backpack

The BCA Stash 40 backpack provides ample space for backcountry skiing and snowboarding trips, featuring a generous 20-liter capacity with thoughtful organization for essential gear. The pack’s adjustable fit system and supportive design make it comfortable for all-day adventures, while the durable 210D nylon construction with PU coating ensures longevity in rugged backcountry conditions. The dedicated tool pocket and integrated hydration sleeve make it a practical choice for winter expeditions, offering both functionality and reliability for backcountry enthusiasts.

High-great Tech 40L Water Resistant Hiking Backpack

This versatile 40L backpack pairs a roomy 20.5-inch length with surprisingly light 1.3-pound construction. The orange option stands out in the crowd of green, dark blue, and black models. Padded back panel and adjustable straps make it comfortable for long treks, while the water-resistant nylon and mesh water bottle pockets keep your gear dry and organized.

Ferrino Dry-Hike 40+5

This lightweight 40+5L backpack keeps you dry with its HDry waterproof membrane and sealed zips. The padded back system and breathable design make it comfortable for heavy loads, while the central YKK zipper lets you access gear without digging through the whole pack. With its attachment points for trekking poles and snowshoes, it’s built for versatile outdoor adventures in all conditions.

Blue Ice Kume 40L Flint Stone Hiking Backpack

The Kume packs in technical features without losing its practicality. From the low-profile hip pads to the quick-access rope compartment, every detail is designed for serious skiers tackling ambitious objectives. Whether you’re hitting the slopes for a full-day adventure or an extended epic, this 40L pack has got you covered – and your gear will thank you for the thoughtful organization options.

Mogplof Flight Approved 40L Hiking Backpack

This versatile backpack manages to pack a surprising amount of space into its compact design, with an expandable main compartment that opens up to reveal 40 liters of storage. The padded back and shoulder straps are surprisingly comfortable, though the backpack might feel a bit heavy for shorter trips due to its robust construction. The thoughtful details, like the hidden shoulder straps and dedicated laptop sleeve, make it a practical choice for both business and leisure travel.

tomtoc Travel Backpack

Made from eco-friendly recycled polyester, this spacious travel backpack combines durable construction with thoughtful design details. With its 40-liter capacity and multiple compartment system, it keeps your gear organized while the padded back and adjustable straps make it comfortable for daily use. The TSA-friendly laptop compartment and water-resistant finish add practical touches you’ll appreciate when packing for your next trip.

Maelstrom 40L Hiking Backpack

Made from tough rip-stop nylon with a 40-liter capacity, this hiking backpack keeps your gear dry thanks to its waterproof lining and clever design details like a detachable rain cover and separate wet pocket for sweaty clothes. The padded back and breathable mesh straps make it comfy for long days on the trail, while the multiple pockets and organizational features keep everything tidy and accessible. The reflective strips and emergency whistle add an important touch of safety to this versatile pack that works great for hiking, camping, or weekend getaways.

Hanples Women’s Travel Backpack

This spacious travel backpack keeps your laptop and gear secure with its padded compartments and expandable design. The breathable back panel and comfortable handles make it a breeze to carry whether you’re jetting off on a weekend getaway or commuting to the city. The built-in charging port and dual toiletry bags show that Hanples has thought of the details that really matter.

Buyer’s Guide

Choosing the right hiking backpack is crucial for a comfortable and successful outdoor adventure. The 40L size offers a balance between capacity and manageability, making it suitable for day hikes and short trips. This guide highlights key features and considerations to help you select the ideal backpack for your needs.

Capacity and Size

40L backpacks typically accommodate roughly 2-3 days of hiking gear, including clothing, food, and supplies. The size makes it comfortable for daily use while remaining carryable without excessive weight. Consider your specific needs and the length of your typical hikes when selecting a backpack within this size range.

Frame and Back System

Modern hiking backpacks feature padded back systems and structured frames to distribute weight evenly. The frame helps maintain the backpack’s shape and keeps contents organized. Keyframe backpacks provide better weight distribution, while sternum and hip belts offer additional support during longer hikes.

External Attachments and Pockets

Reversible hip belts with sternum straps, multiple pockets, and external attachment points enhance storage and accessibility. The hip belt should wrap snugly around your hips for stability, while pockets provide quick-access storage for water bottles, snacks, and essential items.

Materials and Construction

High-quality backpacks use durable materials like reinforced polyester or nylon, with seam-taping for water resistance. The construction should feature sturdy zippers, reinforced stitching at stress points, and adjustable straps for proper fit. Look for backpacks with reinforced corners and edge protection to prevent wear from frequent use.

FAQ

What is the 40L measurement in a hiking backpack?

40L refers to the volume capacity of the backpack measured in liters. This calculation includes the main compartment and usually the top lid compartment as well.

A 40L backpack offers ample space for weekend hikes while remaining manageable for daily carry.

What materials are commonly used in 40L hiking backpacks?

The most durable and popular materials are high-density polyethylene (HDPE) and reinforced polyester. These materials provide a good balance of strength and weight.

Many backpacks also incorporate lightweight nylon with water-resistant coatings for both the main body and straps.

How should I choose between internal and external frame designs for a 40L backpack?

External frame backpacks distribute weight more effectively and offer better ventilation, making them ideal for long-distance hikes and heavy loads.

Internal frame backpacks are more flexible and packable, making them suitable for shorter trips and casual carry.

What features should I consider when selecting a 40L backpack?

Key features include multiple external pockets for quick access to gear, adjustable hip belts and shoulder straps for comfort, and a rain cover attachment point.

Look for packs with padded back panels and shoulder straps, sternum straps, and a hydration bladder sleeve.

How do I properly ventilate the back of a 40L backpack?

Backpacks with a separate layer between the backpack and wearer’s back help reduce moisture buildup and increase comfort.

Ensure there’s space between the back panel and body through the design of channels, mesh panels, or air channels.

What’s the weight range for quality 40L hiking backpacks?

Lightweight backpacks can weigh as little as 1.5kg to 2kg for 40L capacity, while budget options may weigh between 2kg to 3kg.

The lighter the backpack, the more it typically costs, but weight is directly related to durability and build quality.

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