Duet is a reusable drinkware system created by Daisy Tydeman and Nudge Innovations that combines a coffee cup and water bottle into a single portable unit. The design pairs a 340-millilitre insulated coffee cup with a 600-millilitre stainless steel water bottle using a magnetic attachment system. When connected, the cup attaches to the base of the bottle to form a compact object that can be carried as one item. A locking tab helps secure the connection, while the coffee cup lid stores neatly within the assembly when not in use.
The system is designed to reduce the likelihood of leaving a reusable cup behind by linking it to an item many people already carry daily. Duet is manufactured from recycled stainless steel and uses BPA-free components throughout. The coffee cup features a sliding lid mechanism designed for one-handed operation and leak-resistant performance. Available in color options including Dust grey and terracotta-inspired orange, the product combines insulated beverage storage with a space-saving format.
Image Credit: Nudge Innovations
What Makes This Trend Stand Out
- Magnetic Modular Drinkware
- Magnetic attachment formats create new potential for everyday hydration products that combine multiple beverage functions into compact, carry-friendly systems.
- Habit-linked Reusables
- Reusable cup adoption becomes more practical when products are physically paired with daily essentials, reducing friction in sustainable routines.
- Space-saving Hydration
- Compact nesting and integrated storage features signal growth in portable goods designed for commuters, students, and mobile workers with limited bag space.
Sectors Adopting This
- Reusable Drinkware
- Multi-function vessels made from recycled materials expand the category beyond standalone cups and bottles into connected systems with higher daily utility.
- Sustainable Consumer Goods
- Design-led sustainability gains commercial appeal through products that merge waste reduction, durable materials, and convenience-driven aesthetics.
- Commuter Accessories
- Urban mobility products increasingly favor consolidated formats that simplify daily carry while supporting hydration, coffee consumption, and on-the-go routines.
