Top 5 Compression Bags for Outdoor Adventures

Buying Guide for Best Compression Bags

When it comes to travelling light, backpackers are often the most knowledgeable. They face the challenge of fitting all their essentials into a single bag for weekend trips or longer excursions. Compression bags are a game changer for managing bulky items like sleeping bags and extra clothing, allowing you to maximise space.

A compression bag works by removing excess air from soft items, significantly shrinking their volume. Most of these bags feature a cinch closure with an internal drawstring, allowing you to tighten the exterior straps and force out any remaining air. In our experience, some bags can reduce the space taken up by fluffy items by as much as two-thirds, making them invaluable for outdoor adventures.

Each adventure requires different gear, and the type of compression bag you choose should reflect your specific needs.

Key Considerations

Before you purchase a compression bag, consider your requirements carefully. While some travellers attempt to use compression bags for traditional luggage, they are not ideal for rectangular suitcases as they are designed for soft items only and can lead to wrinkling. For more organised packing in regular suitcases, we recommend looking at packing cubes. However, if you’re gearing up for an outdoor adventure, keep reading.

Storage

Decide how you plan to carry your compression bag. Some bags are made to fit inside your main backpack, while others are designed to strap onto the outside. Depending on your hiking backpack, one style may suit you better than another. If opting for an exterior-strap design, ensure it has several reinforced anchor points for added strength and even weight distribution.

Size

Size is crucial when living out of a backpack. A bag that’s too small may prevent you from fitting all your essentials, while a larger bag adds unnecessary weight and could tempt you to overpack. Compression bags typically hold between 6 and 45 litres, depending on the model. Remember, these bags are intended for crushable items like sleeping bags, pillows, and clothing. Ensure the compression bag fits inside your backpack or can be securely strapped to it. Hiking backpacks for weekend trips generally range from 30 to 60 litres, while longer excursions may require packs with an 80-litre capacity. A bag over 20 litres can take up significant space in all but the largest backpacks.

Sleeping Bag: Your sleeping bag type greatly influences which compression bag you’ll need. Down sleeping bags compress smaller and more effectively than synthetic-filled ones. Mummy bags also tend to squish down better than rectangular bags.

For down sleeping bags rated for 40°F, a 10-litre compression bag is typically sufficient. Those rated for lower temperatures often require a 20-litre capacity, while synthetic bags may need up to 35 litres depending on their temperature rating.

Clothing and Other Items: After settling on the sleeping bag, consider the clothing you’ll need. The average airline carry-on suitcase holds about 40 to 45 litres of clothing. Again, remember that the compression bag will only occupy part of your backpack’s space.

Material

While natural materials can be preferable, synthetic options like nylon or polyester are generally best for compression bags.

Nylon: Lighter than polyester, nylon offers better water resistance. It can, however, be prone to punctures, but many manufacturers reinforce it with threads that prevent tearing. Although it may fade or pill more quickly, nylon is ideal for bags stored inside your backpack.

Polyester: This material is less stretchy and strong than nylon but is more puncture-resistant and better suited for bags that attach to the outside of your pack due to its abrasion resistance.

Features

Thoughtful features can distinguish a standard compression bag from an exceptional one. Consider which features are essential for your needs.

Water Resistance

Water resistance is crucial depending on your destination and climate. A wet sleeping bag can ruin your trip, so look for bags designed to protect their contents from moisture. Many bags use materials like PVC or polyethylene to prevent water ingress, while fully waterproof options may include a roll top alongside a zipper for added protection.

True waterproof bags are rare and often more expensive. Determine if you need a bag that can withstand submersion or one that can handle a downpour. Even bags stored inside backpacks should provide a secondary moisture barrier in case of damage or leaks.

Exterior Pockets

Many compression bags lack organisation features, but some have small exterior pockets to store easily lost items, especially useful for bags attached to the outside of your backpack. When considering pockets, think about what items you’ll store there. Avoid putting sharp items like keys in these pockets unless you compress the bag first to minimise the risk of tears.

Quick-Release Straps

Reaching your items quickly can be challenging once packed. Many compression bags come with multiple straps that can be time-consuming to adjust. If you need quick access, look for bags with quick-release straps that feature clips instead of traditional buckles, making it easier to open and retrieve your belongings.

Compression Bag Prices

The price of compression bags varies based on size, material quality, and included features. When comparing prices, remember that we’re discussing the bag’s uncompressed size.

Small: 6-litre bags from off-brand manufacturers are typically available for around £10. While they perform adequately with gentle use, they may lack the quality of pricier options. Name-brand versions can exceed £30 but usually offer better materials and water resistance.

Medium: Off-brand medium bags (10 to 15 litres) are priced between £10 and £15, while name-brand waterproof bags may reach £35 depending on quality.

Large: Expect to pay about £15 for off-brand bags holding 20 litres. Name-brand waterproof options in this category start at £35.

Extra-Large: Off-brand options for 30 litres begin around £20, while premium bags can exceed £50.

Tips

• Check the zippers. Look for coated zippers, indicating a focus on water resistance. Designs featuring an exterior zipper lining provide an extra layer of protection.
• Choose bags with reinforced seams and straps. This reduces the likelihood of rips and tears during use.
• Handle the straps carefully. To prolong your bag’s lifespan, use your body weight to compress the contents rather than relying solely on the straps to do the work.

If you’re planning a multi-day trip, we recommend investing in a water-resistant compression bag to avoid potential disasters from unexpected rain.

FAQ

Q. How do I pack a compression bag?
A. Packing a sleeping bag into a compression sack can be tricky. Start by removing as much air as possible from the sleeping bag, folding, and rolling it tightly. Stuff it into the compression bag while keeping it pressed against your body. Once packed, cinch the bag securely and fold the hood over the top. Use your weight to compress it further, which helps prevent damage to the straps.

Q. What shouldn’t go in a compression bag?
A. Avoid packing sharp objects that might puncture the bag. Tent poles or stakes can also cause damage, so find alternative storage. Many backpacks have straps for such items, while the tent body and rain fly can be debated – some users report no issues, while others caution against tight compression.

Q. Can I wash my compression bag?
A. Yes, but hand washing is recommended to protect the straps and seams. If needed, brush off dirt and scrub gently with warm water and non-detergent soap. Bags that have absorbed odours can be cleaned with an enzymatic cleaner. Always air-dry to prevent mildew, ensuring the bag is fully dry before storage.