Thermos Flask Sizes & Lid Types Guide Singapore: Which to Gift
A 350ml commuter flask and a 1-litre outdoor flask are completely different gifts — and the lid type matters just as much as the size. Get both right and a vacuum flask becomes a daily companion; get them wrong and it’s too big for a bag or too fiddly to drink from. Here’s a quick guide to flask sizes and lids so you choose the right one.
The 30-second version: 350–500ml suits commuters and desks; 750ml–1L suits outdoor and all-day use. Match the lid (twist, flip-straw, push-button) to how the drink is consumed. Our default MOQ is 200 pieces, though it isn’t strict — smaller runs are often possible when a model is in stock or the artwork is simplified.
Flask sizes
| Capacity | Best for |
|---|---|
| 350–400ml | Coffee commuters, compact bags |
| 500ml | The all-round desk & daily flask |
| 750ml | Active days, longer outings |
| 1L+ | Outdoor, hiking, all-day hydration |
Lid types — the daily-use decision
The lid shapes the experience: a twist/cup lid suits hot drinks shared from a cup; a flip-straw lid is best for cold-water sipping on the move; a push-button lid opens one-handed; and a direct-drink screw lid is simplest and most leak-resistant. For a gift that’ll mostly hold coffee, a twist or push-button lid feels right; for hydration, go flip-straw.
Size affects heat retention
Bigger flasks hold heat longer, so a 500ml+ flask keeps coffee hot through the morning — the science is in our flask insulation explainer. For decorating the flask, see our thermal flask printing guide. Browse models in our customised thermal flask range.
Choosing a flask size?
Tell us the use and quantity and we’ll recommend the right size and lid — costed in one business day.
Frequently asked questions
What size thermal flask should I gift?
350–500ml suits commuters and desk use; 750ml–1L suits outdoor and all-day hydration. 500ml is the safe all-round choice for a mixed audience.
What is the minimum order quantity?
Our default MOQ is 200 pieces, but it isn’t strict — smaller runs are often possible when a model is in stock or the artwork is simplified.
