As someone who juggles art projects and teaching materials, I put this portfolio bag through its paces. The 25" x 37" size swallowed my 24x36" posters easily, with room to spare for markers in the outer pockets - a lifesaver during chaotic classroom transitions.

The waterproof claim held true when I got caught in a surprise drizzle. My precious student artwork stayed dry thanks to the double-layer protection, though I wouldn't trust it in a downpour. The oxford cloth folds surprisingly flat under my bed, but does require stiffeners (I used old cereal boxes) to prevent creasing.

Durability is where things get shaky. While the material feels sturdy at first, one of my zippers gave up after two weeks of gentle use. The bag now sports duct tape reinforcements - not exactly the professional look I wanted. For light occasional use it's fine, but frequent travelers might want something heavier-duty.

The outer pockets are genuinely useful for quick-access supplies, and at this price point, it's decent for students or casual creators. Just don't expect it to survive daily abuse like some reviews suggest.