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Clear Glass Heat Resistant Tumblers – Set of 2 (370ml & 300ml)
Two heat-resistant borosilicate-style clear glass tumblers designed for everyday hot and cold beverages. Available in 370ml (12.5 oz) for generous pours and 300ml (10.1 oz) for standard servings — both feature a thick weighted base that improves thermal retention and reduces tip-over risk.
Key Specifications
- Capacity Options: 370ml (12.5 oz) | 300ml (10.1 oz)
- Material: High-clarity heat-resistant glass
- Base Design: Thick weighted bottom for stability and improved insulation
- Temperature Compatibility: Safe for both hot beverages (tea, coffee) and cold drinks (beer, juice, water)
- Quantity: 2 tumblers per set
- Transparency: Full clear glass for visible drink presentation
Use-Case Guide: Which Size Is Right for You?
| Use Case | Recommended Size | Capacity |
|---|---|---|
| Beer, iced drinks, large pours | Large Tumbler | 370ml / 12.5 oz |
| Juice, water, espresso-based drinks | Standard Tumbler | 300ml / 10.1 oz |
| Hot tea, warm coffee | Either size | 300ml or 370ml |
Why the Thick Base Matters
The weighted thick bottom serves two functional purposes: it lowers the tumbler's center of gravity to reduce spills on flat surfaces, and it adds glass mass at the base — a zone with minimal liquid contact — which slows ambient heat transfer and helps maintain beverage temperature longer compared to uniform thin-wall designs.
Note: While glass tumblers offer superior clarity and taste neutrality over plastic alternatives, they are heavier and require careful handling. Hand washing is recommended to preserve long-term clarity.
What's Included
- 2 × Clear Glass Heat Resistant Tumblers (one 370ml, one 300ml, or two of the same size depending on selected variant)
Backed by Wellnesslifeclub74's Promise
Every order ships free on purchases over $49 and is covered by our 60-day money-back guarantee and 1-year warranty — so you can buy with confidence.
Frequently Asked Questions
- Q: Are these tumblers safe for hot drinks like tea and coffee?
A: Yes. The heat-resistant glass construction allows these tumblers to handle hot beverages safely. They are suitable for both hot and cold drinks for everyday home use.
- Q: Why do thick bottom glass tumblers keep drinks colder for longer?
A: The additional glass mass at the base acts as a thermal buffer, reducing the rate of heat exchange between the drink and the surrounding air. This is most effective for cold drinks when the tumbler is pre-chilled before use.
- Q: Are clear glass tumblers safe for both hot and cold drinks?
A: Yes. Heat-resistant clear glass is designed to tolerate temperature variation without cracking under normal use conditions, making it suitable for both iced beverages and warm drinks.
- Q: Is buying a set of 2 glass tumblers worth it compared to buying single glasses?
A: A set of 2 offers better per-unit value and ensures a matched pair for entertaining or shared household use. The two size options (370ml and 300ml) in this set also provide versatility for different drink types.
- Q: What size glass tumbler should I get for beer versus juice?
A: The 370ml (12.5 oz) tumbler is better suited for beer and larger cold drink servings. The 300ml (10.1 oz) works well for juice, water, or smaller pours. This set includes both sizes.
| Shipping | This item ships to |
| Delivery | Estimated between and . Will usually ship within 1 business day. |
Description
Clear Glass Heat Resistant Tumblers – Set of 2 (370ml & 300ml)
Two heat-resistant borosilicate-style clear glass tumblers designed for everyday hot and cold beverages. Available in 370ml (12.5 oz) for generous pours and 300ml (10.1 oz) for standard servings — both feature a thick weighted base that improves thermal retention and reduces tip-over risk.
Key Specifications
- Capacity Options: 370ml (12.5 oz) | 300ml (10.1 oz)
- Material: High-clarity heat-resistant glass
- Base Design: Thick weighted bottom for stability and improved insulation
- Temperature Compatibility: Safe for both hot beverages (tea, coffee) and cold drinks (beer, juice, water)
- Quantity: 2 tumblers per set
- Transparency: Full clear glass for visible drink presentation
Use-Case Guide: Which Size Is Right for You?
| Use Case | Recommended Size | Capacity |
|---|---|---|
| Beer, iced drinks, large pours | Large Tumbler | 370ml / 12.5 oz |
| Juice, water, espresso-based drinks | Standard Tumbler | 300ml / 10.1 oz |
| Hot tea, warm coffee | Either size | 300ml or 370ml |
Why the Thick Base Matters
The weighted thick bottom serves two functional purposes: it lowers the tumbler's center of gravity to reduce spills on flat surfaces, and it adds glass mass at the base — a zone with minimal liquid contact — which slows ambient heat transfer and helps maintain beverage temperature longer compared to uniform thin-wall designs.
Note: While glass tumblers offer superior clarity and taste neutrality over plastic alternatives, they are heavier and require careful handling. Hand washing is recommended to preserve long-term clarity.
What's Included
- 2 × Clear Glass Heat Resistant Tumblers (one 370ml, one 300ml, or two of the same size depending on selected variant)
Backed by Wellnesslifeclub74's Promise
Every order ships free on purchases over $49 and is covered by our 60-day money-back guarantee and 1-year warranty — so you can buy with confidence.
Frequently Asked Questions
- Q: Are these tumblers safe for hot drinks like tea and coffee?
A: Yes. The heat-resistant glass construction allows these tumblers to handle hot beverages safely. They are suitable for both hot and cold drinks for everyday home use.
- Q: Why do thick bottom glass tumblers keep drinks colder for longer?
A: The additional glass mass at the base acts as a thermal buffer, reducing the rate of heat exchange between the drink and the surrounding air. This is most effective for cold drinks when the tumbler is pre-chilled before use.
- Q: Are clear glass tumblers safe for both hot and cold drinks?
A: Yes. Heat-resistant clear glass is designed to tolerate temperature variation without cracking under normal use conditions, making it suitable for both iced beverages and warm drinks.
- Q: Is buying a set of 2 glass tumblers worth it compared to buying single glasses?
A: A set of 2 offers better per-unit value and ensures a matched pair for entertaining or shared household use. The two size options (370ml and 300ml) in this set also provide versatility for different drink types.
- Q: What size glass tumbler should I get for beer versus juice?
A: The 370ml (12.5 oz) tumbler is better suited for beer and larger cold drink servings. The 300ml (10.1 oz) works well for juice, water, or smaller pours. This set includes both sizes.
Shipping
| Shipping | This item ships to |
| Delivery | Estimated between and . Will usually ship within 1 business day. |
