Say goodbye to burnt fingers and lukewarm coffee. The JoyJolt Declan double wall glass mugs are designed for anyone who loves a long, relaxing coffee or tea session. The vacuum-sealed double wall construction provides insulation that keeps your drink hot for up to 30 minutes while the outer glass stays cool to the touch. Each mug holds 15 oz, ideal for a generous serving of your favorite hot beverage. This set of 2 is perfect for sharing or treating yourself to a morning ritual upgrade.
Crafted from high-quality borosilicate glass, these mugs are both durable and elegant. The double wall design eliminates condensation, so you can set them on any surface without worry. At 15 oz (444 ml), they're larger than standard coffee mugs, giving you room for lattes, cappuccinos, or tea with plenty of milk. The glass is microwave safe for reheating, and dishwasher safe for easy cleaning. Each mug measures 9.5 cm in diameter and 13 cm tall, with a comfortable handle integrated into the outer wall.
Unlike ceramic mugs that conduct heat to the handle, Declan's double wall design keeps the entire surface cool to touch. They're larger than typical espresso cups, perfect for a full mug of coffee. The borosilicate glass resists thermal shock better than soda-lime glass, so you can pour boiling water directly without worry. A chic, modern alternative to standard mugs.
Set of 2 JoyJolt Declan double wall glass coffee mugs. No extra accessories.
Set of 2 double wall mugs, 15 oz each
Borosilicate glass for thermal durability
Vacuum insulated keeps drinks hot 30 min
Cool-to-touch exterior, no condensation
Microwave and dishwasher safe
Color: Clear glass
Weight: 250 g / 8.8 oz per mug (500 g / 1.1 lb for set)
Capacity: 15 oz (444 ml) per mug
Material: High-borosilicate glass
Warranty: 1-year manufacturer warranty against defects
Dimensions: Height: 13 cm / 5.1 in x Diameter: 9.5 cm / 3.7 in
Country of Origin: China
Temperature Retention: Hot up to 30 minutes, cold up to 45 minutes
Seller: JoyJolt
Picture this: a quiet morning, a steaming mug of coffee in your hands, and the glass stays cool to the touch. That's the Declan double wall mug experience from JoyJolt. Designed for those who appreciate a long, leisurely coffee or tea session, these mugs keep your drink at the perfect temperature while ensuring your hands never get burnt. They're also a great replacement for paper cups or heavy ceramic mugs, adding a touch of modern elegance to your kitchen.
The vacuum-sealed double wall creates an insulating barrier that keeps hot drinks hot and cold drinks cold. The borosilicate glass is highly durable, resisting thermal shock and cracking. An integrated handle allows a secure grip, but the entire mug stays cool to the touch. With a generous 15 oz capacity, you can enjoy a full latte or a large cup of tea without needing a refill.
Use these mugs for your morning coffee, evening tea, or even a refreshing glass of iced coffee. They're microwave safe for reheating and dishwasher safe for cleanup. Their sleek design complements any kitchen or office setting, making them a versatile addition to your drinkware collection.
Every Declan mug is made with precision and care. We use only premium borosilicate glass and test each piece for durability. If you ever have an issue, our support team is ready to assist. Upgrade your coffee ritual with JoyJolt—where every sip sparks joy.
Yes, the borosilicate glass is designed to withstand boiling water without cracking. The double wall construction provides insulation so the exterior stays cool.
Yes, the sealed air layer insulates, keeping your coffee hot for up to 30 minutes. For longer hot retention, preheat the mug with hot water before pouring your coffee.
Yes, they are microwave safe for gentle reheating (20-30 seconds on medium). Avoid overheating or empty microwaving to prevent damage.
No, the double wall design prevents condensation from forming on the exterior, so they won't leave rings on your desk or table.
These are perfect for my morning tea. The double wall keeps it hot but the mug stays cool to hold. 15 oz is a good size. Sleek design.
They look great and keep drinks hot. My only thing is they're heavier than my regular mugs. But that's the double wall. Works fine.
He's picky about coffee mugs. He loves these. Says they feel modern and the coffee stays hot longer. Liked them so much he bought another set for his office.
The mugs are good quality. But the delivery took almost two weeks and the outer box was damaged. Inside was fine. Still, not a great experience.
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Email: support@joyjolt.us