The 3F UL 55L Backpack is one of the lightest framed backpacks available weighing as little as 1,085 grams.
This 55 L pack is great for multi-day hikes of long duration or for when more gear is required.
It is available in 3 different sizes and has 2 sizes of wast straps available. Because of this, this pack is not only extremely light but it will also fit you like a glove.
A snug fitting backpack will not only be more stable and improve your balance on the track, it will also feel lighter.