ブルーボトル

The plastic cap seals tightly enough that I've been using mine for homemade salad dressings without any leaks in the fridge. Glass feels solid in hand, and the cobalt tint makes it look nice on the counter even when half-empty.

The cobalt blue color is even richer in person, and the glass feels solid enough to toss in my bag without worry. The plastic cap seals tight, so I’ve been refilling mine with my own mixes for weeks now.