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Gregory Zulu 45 Review
Looking for a lightweight and ventilated pack for weekend trips or fast-moving backcountry hikes? In this Gregory Zulu 45 review, we break down why this men’s-specific pack stands out for comfort, airflow, and efficient design on shorter treks.
The Gregory Zulu 45 is a 45-liter internal frame pack designed for weekend warriors and minimalist backpackers. What makes it shine is the FreeFloat dynamic suspension system, which adapts to your body’s movement and keeps weight balanced while maximizing breathability through a tensioned mesh back panel.
Key features include a U-zip front access panel, large stretch mesh side pockets, zippered hipbelt storage, and a top-loading main compartment with an integrated rain cover. At just over 3.5 lbs, the Gregory Zulu 45 strikes a sweet spot between weight, comfort, and carrying capacity for shorter trips.
Key Specifications
| Weight | 3 lbs 9 oz (size M) |
| Capacity | 45 liters |
| Frame Type | Internal Frame |
| Suspension System | FreeFloat Dynamic Suspension |
| Torso Fit Range | 16–21 inches |
| Hipbelt Fit Range | 28–48 inches |
| Material | 210D & 420D High-Density Nylon |
Comparisons
Gregory Zulu 45 vs Osprey Kestrel 48
The Osprey Kestrel 48 is a great alternative with slightly more capacity and a rugged design for rougher conditions. While the Kestrel offers better external gear attachment options and a beefier frame, the Gregory Zulu 45 is more breathable and ergonomic, especially on warm-weather hikes. Choose the Kestrel if you need more durability and external storage, or the Zulu for a more comfortable, streamlined carry.
Gregory Zulu 45 vs REI Co-op Flash Air 50
The REI Co-op Flash Air 50 is an ultralight pack designed for minimalists who prioritize weight savings above all else. It’s significantly lighter than the Zulu and ideal for fastpacking or thru-hiking with a dialed-in gear list. However, the Flash Air’s minimalist design sacrifices some comfort and support. The Gregory Zulu 45 offers more padding, a better suspension system, and enhanced durability, making it a better choice for most weekend backpackers.
Pros & Cons Summary
| Feature | Gregory Zulu 45 | Osprey Kestrel 48 | REI Co-op Flash Air 50 |
|---|---|---|---|
| Weight | ✅ Lightweight | ✅ Moderately light | ✅ Ultraight |
| Comfort | ✅ Excellent suspension | ✅ Supportive design | ❌ Basic padding |
| Ventilation | ✅ Superior airflow | ✅ Good airflow | ❌ Limited ventilation |
| Organization | ✅ Great access options | ✅ Gear loops + pockets | ❌ Minimal external storage |
| Adjustability | ✅ Fits most body types | ✅ Adjustable harness | ❌ Limited adjustments |
| Best For | Weekend hikes & short trips | Rugged overnights | Ultralight fastpackers |
Looking for something else? Visit our Best Backpacking Packs guide.
Frequently Asked Questions
Is the Gregory Zulu 45 good for thru-hikes?
It’s better suited for weekend trips or short ultralight treks. For longer hauls, a 60+ liter pack is usually more appropriate.
Does it come with a rain cover?
Yes, the Zulu 45 includes a built-in rain cover stored in its own pocket.
Is it hydration compatible?
Yes, there’s an internal hydration sleeve and port for a reservoir.
Can it carry a bear canister?
It can carry smaller bear cans vertically, but it may not fit all models comfortably due to its size.
Is the Zulu 45 available in different sizes?
Yes, it comes in multiple torso length options to ensure a proper fit.
Final Thoughts
The Gregory Zulu 45 is an excellent pack for weekend backpackers and hikers looking for a lightweight, breathable, and supportive pack. Its FreeFloat suspension and quality construction offer a comfortable experience on the trail, especially in warm conditions. While it may not be ideal for extended trips, it’s a standout choice for short, fast-moving adventures.
