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KATABATIC GEAR Onni V40 – 65L ultralight backpack

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Katabatic Gear Onni V40 – 65L ultralight backpack with hipbelt pockets

Ultralight and comfortable at the same time. Body material is very strong made with extremely durable V40 fabric. If you are hard on your gear this is the pack for you. Quality of the stitching and overall workmanship of all Katabatic packs is top notch. 

We recommend this pack to anyone who is looking to keep the weight down without sacrificing quality.


V40 – 420D Nylon with laminated 0.5 mil PET film. PET film is more waterproof and durable than PU coatings.

V40T – Used for bottom of pack. 420D Nylon with laminated 0.25 mil PET film and 50D polyester backing for increased durability.

Aluminum 6061-T6 Stay. Contoured high strength aluminum stay comfortably supports the load.


Small: 935g | 33.0 oz

Medium: 978g | 34.5 oz

Large: 1015g | 35.8 oz


68L total (size medium)

42L main body

12L extension collar

5L side pockets

9L back pocket


(size medium)

Height 56cm | 22″ bottom of pack to load lifter attachment point – extension collar adds 30,5 cm | 12″

Width 34cm | 13.5″

Depth 25cm | 10″

RECOMMENDED LOAD: up to 15.8kg | 35 lbs.

made in usa
Katabatic Gear Onni V40-65L

Data sheet
Weight978 g
Warranty2 years
Made inUSA
Torso Size

To find the correct torso size, it is best to measure your torso length. The measurement will be most accurate using a flexible measuring tape and a friend to help. Measure torso length vertically from C7 vertebrae (the bump at the base of your neck) to the spot on your spine that is level with the iliac crest (top of hipbone). Try to keep your back comfortably straight while the measurement is taken.

Torso lengthcminch
Small39.4cm - 47cm15.5″ – 18.5″
Medium 44.4cm - 52cm17.5″ – 20.5″
Large49.5cm - 57cm19.5″ – 22.5″

Height ranges

As another point of reference, and a very general guideline, our sizes fit people of the following height ranges:

Height rangescminch
Smallunder 170cmunder 5’7″
Medium170cm - 180cm5’7″ – 5’11”
Largeover 180cmover 180cm | 5’11”

If you are still not sure or in between sizes, it is generally best to size up.
height ranges

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  • 30 days return policy
    30 days return policy
    100% money back

    30 days return policy

    You can return the product for any reason within the 30 days.

  • Express delivery
    Express delivery
    Next day delivery to all EU countries.

    Express delivery

    Choose Express delivery and you can start using gear the very next day.

  • Free Shipping
    Free Shipping
    Valid for all orders over 300 € within EU

    Free Shipping

    For all orders above 300€, we deliver within EU countries at no cost by standard courier service and with parcel tracking.

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