Bonfus Iterus 38L UltraX Ultralight Pack
SIMPLICITY MEET COMFORT AND PRACTICALITY.
The Iterus 38L is the ultimate dream pack for lightweight backpackers! Designed for ultralight adventurers, it’s ideal for multi-day trips where keeping your base pack weight low is essential. Plus, it’s perfect for weekend getaways for more traditional hikers, making it versatile enough for any outdoor enthusiast. The Iterus 38L is a frameless wonder, crafted from cutting-edge waterproof materials that strike the perfect balance between featherlight and incredibly durable. Say goodbye to heavy gear and hello to a pack that can withstand the elements while keeping you agile on your adventures!
Explore our full range of Backpacking Packs here.
KEY FEATURES OF THE ITERUS 38L PACK
• Bottom pocket
• Removable shock cords in the back panel to attach foam pad (not included) for added comfort and breathability (see pictures).
• Functional 4-point compression cords that fully cover the pack sides from top to bottom, allowing to significantly reduce pack volume when needed.
• Big stretchy spandex/nylon front mesh stores a lot of gear.
• Durable side pockets with double-layer elastic at the hem to firmly hold your gear in place.
• Single webbing straps for carrying extra gear over roll top closure
• Comfortable 11mm (7/16”) thick shoulder straps, padded with EVA-foam and 3D spacer mesh.
• Daisy chain on shoulder straps for adding extra shoulder pouches or other gear.
• One sewn-in shoulder mesh stretch pocket
• Ice axe attachment point
• Chest straps with loops for lightweight hardware-free connection to the daisy chain.
• Included removable 2.5cm (1”) webbing belt, with two attachment loops to regulate for torso length.
• Drainage hole at each side pocket
• Taped seams (with Ultra200X as pack material). Seam tape is applied to increase water resistance and increase seam strength. The pack is highly water resistant, not waterproof. A pack liner is suggested to ensure pack content remains dry.
• Reinforced bottom section with Ultra400X fabric.
• UltraGrid Black fabric for side pockets and shoulder straps, for added strength and durability.
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SIZE + SPECIFICATIONS
- Volume: 38 litres (30L internal volume, 8L external pockets)
- Size
Unrolled height: 73cm
Average circumference: 85cm
- Torso length
Up to 50cm/20 inches (first attachment loop)
Up to 55cm/22inches (lowest attachment loop)
-Pack Weight
Ultra 200X Black or White 380g
Webbing belt adds 35g (included). Optional padded hip belt
- Suggested carry load
up to 6-7kg without hip belts
up to 8-9kg with removable webbing belt
up to 9-10kg with padded removable hip belt -
REVIEWS
"The best UL backpack I've ever had!"
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WHAT WE THINK
The Bonfus Iterus 38L pack is everything we wished for in a thru-hiking pack. It perfectly balances lightweight, durability, and comfort. With just enough space for your essentials, it’s roomy without being bulky. The Ultra 200 fabric gives it exceptional strength while keeping the weight incredibly low—perfect for long-distance hiking where every gram matters.
What we love most is the minimalist design, it’s simple, intuitive, and streamlined, offering just the right amount of pockets and features to keep your gear organised without adding clutter. The adjustable straps and hip belt ensure a custom fit, providing comfort and stability even on the toughest days on the trail. For thru-hikers looking for a reliable, lightweight, and functional pack, the Bonfus Iterus 38L is an excellent choice. -
Weight
380 g