Package Free サステナブルトラベル用保温タンブラー（ストロー付き）

The straw fits snugly and the lid seals tight, so no drips in my bag on the commute. I love that it’s giving old stock a second life instead of adding to the trash heap.

Keeps my iced coffee cold through a full afternoon of errands, and the straw makes it easy to sip one-handed while driving. Glad they’re doing the zero-waste thing with old stock instead of trashing it, feels like a small win for the planet.

The vintage stock thing actually charmed me—my lid has a subtle scuff but the insulation holds ice for hours, and the straw sits flush enough that tossing it in my bag doesn't leak.