315 Series

The Sincerity of the Inner Liner

The core inner liner is made of high-quality stainless steel material. The inner wall is finely ground and electrolytically treated, with a smooth and dense surface that is not easy to attach tea stains and coffee residues. Daily cleaning is as easy as rinsing.

"A truly good thermos is not built by complex stacking. It should subtract in structure and add in experience."

Temperature Control Logic

315 Series has made more detailed cavity calculations on the double-layer vacuum structure, weakening the temperature loss caused by heat conduction and convection. Whether it is hot water after 6 hours or iced drinks after 8 hours, it maintains a comfortable temperature range.

Quiet Design

The bottle body lines are simplified to only the necessary arcs. The damping of the bottle cap knob has been repeatedly adjusted, making it light and tight when opening and closing. The leak-proof silicone ring is hidden inside the cap. It can be a still life on the office desk, or a traveling tool in the backpack.