3F UL KAOLA Backpack 20+5L

Weight: 500g (1.1 lbs) – Less than a full water bottle for a complete 25L backpack. This is what happens when you build with UHMWPE, the same ultra-strong material used in climbing ropes and protective armor.

Capacity: 20L + 5L expansion = 25L total – Perfect size for fastpacking, day hikes, summit pushes, or ultralight overnight trips. Enough space for essentials without the bulk.

Material: UHMWPE (Ultra-High-Molecular-Weight Polyethylene) – This is the stuff of extreme performance. 15 times stronger than steel by weight, yet it floats on water. Used in bulletproof vests, sailing lines, and alpine climbing gear, UHMWPE delivers exceptional abrasion resistance and tear strength while remaining incredibly lightweight. Unlike traditional nylon that can absorb water and lose strength when wet, UHMWPE is hydrophobic and maintains its performance in any conditions. It won't stretch, won't sag, and will outlast conventional pack fabrics by years.

IXPE Carry System – Integrated foam back panel provides structure and comfort without adding unnecessary weight. Keeps the load stable and your back ventilated.

Dimensions: 26×24×52cm – Slim profile that doesn't catch on branches or throw off your balance on technical terrain.

By 3F UL Gear – Trusted ultralight brand known for pushing weight limits without compromising durability.

Perfect for fastpacking, trail running with gear, alpine day trips, ultralight thru-hiking, or anyone who wants to move fast and light without sacrificing carrying capacity.