

| Capacity | 270 ml (9 oz) nominal; brim capacity 300 ml |
|---|---|
| Material | 18/8 (304) stainless steel body |
| Finish | Spray-painted colour, matte; mirror and brushed also available |
| Shape | Square body with rounded corners, flat stable base |
| Seal | Screw cap with silicone gasket (spares available) |
| Decoration | Laser engraving, silk screen, UV print, heat transfer |
| Certification | Food-contact tested to US FDA 21 CFR and EU LFGB (EN 1186); BPA-free; ISO 9001 |
| MOQ | 500 pieces (negotiable); new tooling 3,000 pieces |
| Lead time | Ready stock 7-15 days; stock sample 1-3 days; custom sample 7-10 days; production 25-30 days |
| Packaging | Carton, polybag or printed retail gift box (packaging MOQ quoted separately) |
The square 9 oz flask is built for the outdoor channel: a 304 stainless steel body in a spray-painted matte finish, with rounded corners and a flat base so it sits in a pack or a vehicle holder without rocking. At 270 ml it carries a comfortable measure of spirits while staying light enough for a day on the trail.
The spray-painted finish is a colour match rather than a coating on a raw shell, which is what gives it an even surface across the run and hides the small marks that a raw polished body shows. Paint setup is USD 30 per colour and is a one-time charge, so a three-colour range carries three setups.
Food-contact requirements are met: the body is tested to US FDA 21 CFR and EU LFGB (EN 1186) migration standards, and the cap uses a silicone gasket selected for stability with high-proof spirits. Replacement caps and gaskets are stocked as spares, so a customer who loses a cap replaces it instead of discarding the flask.
Decoration options are laser engraving, silk screen, UV print and heat transfer, and we can quote a printed retail gift box for gifting and for corporate orders. MOQ is 500 pieces on the existing shape; a new shape with new tooling needs 3,000 pieces and the mould is yours once paid for. Samples of the stock model ship in 1-3 days and custom samples in 7-10 days, with production 25-30 days after approval and AQL 2.5 inspection before the container is sealed.
STWADD is a factory-backed drinkware supply company in Yongkang, Zhejiang: we produce to your specification at audited partner factories we qualify and work with directly, with our own QC team on the line, and we publish the original third-party test reports for the products we make. For the full buying picture see our guide to sourcing hip flasks for liquor and private-label hip flask programme costs.
What is the capacity of this flask? 270 ml (9 oz) nominal, with a brim capacity of 300 ml. We quote both because shipping and gift-box fit are calculated on the larger figure.
What is the difference between the painted and polished versions? The spray-painted finish is a matched colour with a matte surface that hides wear better and evens out appearance across a production run. Paint setup is USD 30 per colour, charged once. Mirror and brushed finishes are also available.
Is it food-contact certified? The 304 stainless steel body is tested to US FDA 21 CFR and EU LFGB (EN 1186) migration requirements and is BPA-free. We publish the original third-party reports on our certifications page.
Can I customise it for my brand? Yes - laser engraving, silk screen, UV print or heat transfer, with a printed retail gift box if you need one. MOQ is 500 pieces on the existing shape and 3,000 pieces for a new shape with new tooling.
What are the MOQ and lead time? MOQ from 500 pieces. Ready stock dispatches in 7-15 days, stock samples ship in 1-3 days, custom samples take 7-10 days and production runs 25-30 days after artwork and sample approval.
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