500ML Borosilicate Glass Tumbler with Straw

Why Glass, and Why Borosilicate Specifically

The consumer shift away from plastic drinkware isn’t just about BPA — it’s about the question of what material the drink is actually touching, and whether that material stays inert across repeated use, temperature changes, and dishwasher cycles.

Glass answers that question definitively. It is chemically inert, non-porous, taste-neutral, and transparent — your drink sees the actual glass, not a lining, a coating, or a plastic sleeve pretending to be something else. Borosilicate glass goes further: its lower thermal expansion coefficient makes it significantly more resistant to thermal shock than standard soda-lime glass, so it handles the temperature shift from a hot drink to a cold rinse, or from a warm car to a cold office, without cracking.

For a brand positioning around clean ingredients, transparent sourcing, or plastic-free living, a borosilicate glass tumbler isn’t just a product — it’s a statement about what the brand believes the drink should touch.

The Straw Lid

The lid and built-in straw are Eastman Tritan — BPA-free, BPS-free, and food-safe. The straw sits inside the Tritan lid and inserts through a sealed port for drinking. When not in use, the port closes to keep the straw and opening clean between sips.

Tritan is the material of choice here specifically because it matches the safety standard of the glass body — no bisphenol compounds, no leaching, no plastic taste — while providing the flexibility and impact resistance that a glass straw would not.

What Double-Wall Means for a Glass Tumbler

This tumbler uses a double-wall glass construction — two layers of glass with an air gap between them. Unlike stainless steel vacuum insulation, this does not provide multi-hour thermal retention. What it does provide is a no-sweat exterior (the outer wall doesn’t condense with cold drinks) and a cooler-touch outer surface with warm drinks, making it comfortable to hold in both scenarios.

For hot and cold drinks on a desk, at a café counter, or in a morning routine, the double-wall glass performs appropriately. For buyers needing extended outdoor thermal retention, the stainless steel range in Haers’ collection is the right recommendation.

Technical Specs

• Capacity: 500ml / 17oz
• Body: Heat-resistant borosilicate glass, double-wall construction
• Lid & straw: BPA-free Eastman Tritan, built-in straw with sealed port
• Mouth: Wide-mouth — easy filling, ice cube compatible, thorough cleaning access
• Car holder: Fits most standard automotive cup holders
• Weight: 0.36 kg / 0.79 lbs | Dimensions: 8.1 × 8.1 × 18.1 cm
• SKU: HBL-500SG-7

Who Orders This

Health cafes and juice bars replacing single-use plastic cups with a branded reusable option their customers can buy and bring back. Sustainable lifestyle brands launching a drinkware line where the absence of plastic is a core product claim, not just a compliance requirement. Wellness and nutrition companies whose customers read labels on everything — and whose drinkware should reflect the same transparency. Eco-conscious retail buyers building a “plastic-free kitchen” category where borosilicate glass is the anchor material. Corporate gifting programs targeting environmentally motivated teams who want a desk cup that says something beyond the logo on the side.

Custom Branding

Logo application on glass uses water decal, transfer printing, and heat transfer — methods that adhere cleanly to the glass surface without obscuring the transparency that makes this tumbler visually distinctive. Most brands sourcing this tumbler keep the glass body clear and apply the logo minimally — which tends to have more visual impact than a full-coverage print on an opaque surface.

Custom packaging — retail gift box, eco-sleeve, display carton — available for sustainable brands wanting packaging that matches the product’s positioning. Browse ready-to-ship options for faster lead times | Full OEM & ODM service | Enquire via contact form — reply within 24 hours.