Bonfus Iterus 38L Advanced Lightweight Frameless Backpack for Hiking

The Iterus 38 is a minimalist, practical, and tough frameless backpack, ideal as a primary pack for those moving towards advanced ultralight backpacking.

Suitable for multi-day adventure hikes with a super-light base weight, or traditional two-day weekend treks, it's a dream pack for ultralight backpackers.
The main body of the backpack uses the most advanced Ultra™ X 200: woven from 200D UHMWPE (Ultra-High Molecular Weight Polyethylene) blend fibers. Compared to its equivalent DCH50, it has 3 times the UHMWPE content, while also improving tear strength by 3 times and abrasion resistance by 7 times. Its lining is 0.75 mil recycled polyester film, which also has high water resistance.
Ultra™ X 200 has 45° Ultra™ CrossPly strong yarns added under the backing film, with its interwoven grid enhancing diagonal tensile strength, preventing delamination, and extending fabric life.
The bottom of the backpack uses a more durable Ultra400: woven from 400D UHMWPE blend fibers. Compared to its equivalent DCH150, it has 4 times the UHMWPE content, while also improving tear strength by 2 times and abrasion resistance by 15 times, and also has high water resistance.
Internal seams are treated with UltraTNT™ PSA waterproof tape, which has built-in Ultra™ CrossPly strong yarns to help reinforce diagonal tension and increase the tape's tear resistance.
The shoulder strap fabric and side pockets are fully upgraded to UltraGrid™ ripstop fabric, which is woven with UHMWPE as a double reinforcement of Double Ultra™ Grid, making it lighter than ordinary ripstop fabric and increasing its tear strength.

．An additional lashing system for foam back panels helps distribute pressure and enhance comfort.

．Comfortable EVA foam shoulder straps with highly breathable 3D mesh fabric on the inner side.

．3D mesh fabric is also used on the inner side near the neck for increased breathability and comfort.

．Roll-top closure with a single compression strap, which can also be used for attaching extra gear.

．Side pockets feature a double elastic design to securely hold gear, with drainage holes at the bottom.

．Multi-functional four-point compression cords on both sides to compress the backpack and stabilize the load, also usable for external gear attachment.

．Trekking pole/ice axe loops at the front bottom, and an elastic cord loop for securing at the top.

．Large-capacity four-way stretch front mesh pocket, made of durable Nylon/Spandex blend material, for quick access to gear.

．An elastic mesh pocket on the left shoulder strap for phone, GPS, trail snacks, or other small items.

．Webbing loops on the shoulder straps for attaching additional shoulder pouches or other gear.

．Sternum strap with a loop, adjustable up and down with the webbing loops on the shoulder straps, or removable.

．Removable hip belt webbing with a two-stage connection loop, adjustable according to personal torso length.

．Quick-access bottom elastic mesh pocket, allowing access to gear, snacks, etc., without taking off the backpack.

Torso Length:
．S (suitable for 15~18 inch torso length)
．M (suitable for 17~22 inch torso length)

Backpack Weight:
Ultra 200X Black or White: 380 grams
Webbing hip belt weight 35 grams (included). Optional padded hip belt available.

Recommended Load:
Without hip belt: 6-7 kg
With removable webbing hip belt: 8-9 kg
With removable padded hip belt: 9-10 kg

Material:
Main Body | UltraX 200 (130gsm | 3.85oz/sqy)
Bottom | UltraX 400 (168gsm | 4.95oz/sqy)
Side Pockets, Shoulder Straps | UltraGrid™

Origin: Mexico