In this video I’m doing something completely different to my usual 3D printing and laser tech reviews. Waterfly reached out and asked if I’d review one of their backpacks, and I thought—why not change it up? I take a hands-on look at the Waterfly NATU “Shaolin Kung Fu” sports backpack (the sand-coloured one), what you get in the packaging, and the main features that stand out when you’re actually handling it. I go through the storage and usability side of things: it’s got that 180-degree opening design so you can flip it open and pack/unpack quickly, plus loads of compartments—around 12 multi-functional pockets—some zipped, some open for bottles and quick access items. I also cover the expandable top section (up to 26L, roughly a 20% increase), the ergonomic S-shaped shoulder straps, back padding/ventilation, and the stability straps on the front. One of my favourite little touches is the whistle built into a buckle—genuinely useful if you’re hiking and need to get attention. If you go to events and need a solid bag for carrying gear (even 3D printing bits and pieces), this style of setup makes a lot of sense.