プラスチック製ウォーターボトル

Barely notice it in my bag at 99 grams, which is exactly what I wanted for commuting. The slim 5.5 x 5.5 cm base slides into the side pocket of my backpack without sticking out, and the cap seals tight enough that I've tossed it around without a drop leaking.

The 5.5-inch width fits perfectly in my car's cup holder, which is a nice bonus. The plastic feels sturdy enough for daily use without being too heavy.

I was surprised how lightweight it is at only 99 grams, makes it easy to toss in my bag without adding bulk. The 5.5x5.5cm base is compact enough to hold comfortably while still holding a decent amount of water.