350ml vacuum flask

A shelf of ml vacuum flasks sits between the larger l vacuum flask line and the compact printed thermos flask range, and it earns its place by matching everyday drink volumes to a body that still fits a cup holder, a desk drawer, or a tote pocket. Capacity in milliliters is the organizing feature here, so buyers compare shapes at a glance rather than guessing from exterior dimensions.

Each flask in this group pairs a double walled vacuum flask interior with a stainless steel shell, sealed at the neck and capped with a screw lid that pours without a separate cup. The vacuum gap slows heat transfer in both directions, so hot tea stays warm through a morning commute and cold water holds its chill on a long afternoon. Four styles make up the range.

Promotional suppliers favor this size because it carries a logo cleanly on a narrow cylinder and travels well in gift sets and conference packs. Importers stock it alongside the tea pot vacuum flask and plastic vacuum flask options to cover a full volume ladder. Distributors appreciate a mid range price band that keeps reorders simple across a mixed order.

End users reach for these flasks on commutes, at gym sessions, on hiking trails, and at office desks where a full liter is more than anyone drinks before lunch. The slim profile slides into a backpack side pocket, and the coated exterior resists scuffs from daily handling. Practical buyers treat it as a personal flask rather than a shared pourer.

Sourcing checks should cover lid thread fit, seal condition after repeated twisting, and whether the painted finish hides fingerprints rather than collecting them. Ask for samples across several units to compare insulation and confirm the neck opening suits standard ice cubes. Review packaging for retail and bulk shipments, and verify that the aluminum or iron trim on any variant matches the finish shown in the catalog.