# Magnetic Drinkware Sets Duet Pairs a Reusable Coffee Cup with a Stainless Steel Water Bottle By Amy Duong | Published 2026-06-15 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/duet-1 References: [nudgeco](https://www.nudgeco.com/item/duet)  Duet is a reusable drinkware system created by Daisy Tydeman and [Nudge Innovations](https://www.trendhunter.com/trends/coffee-bombs) 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](https://www.trendhunter.com/trends/chillys-series-3-flip) 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](https://www.trendhunter.com/trends/flat-water-bottles). Image Credit: Nudge Innovations ## Trend Insights (Trend Hunter) - Score: 5.9/10 - Popularity: 44% | Activity: 52% | Freshness: 80% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: North America, South America, Europe, Asia, Africa ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) ## Key Themes ### 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. ## Related on Trend Hunter - [Business Travel Backpacks](https://www.trendhunter.com/trends/herman-pro.md) - [Co-Branded 6-Packs](https://www.trendhunter.com/trends/heinz-and-heineken.md) - [Titanium Wrench Tools](https://www.trendhunter.com/trends/omnipro-wrench-30.md) - [Luxury Capsule Collections](https://www.trendhunter.com/trends/fathers-day-accessories-capsule.md) - [Lightweight Circular Wine Packaging](https://www.trendhunter.com/trends/Lightweight-circular-wine-packaging.md) - [Patriotic Refillable Water Products](https://www.trendhunter.com/trends/path-gold-edition-water-bottle.md) - [Limited-Edition Summer Gins](https://www.trendhunter.com/trends/cornish-apple-elderflower-gin.md) - [Elegant Eco-Friendly Alcohol Bottles](https://www.trendhunter.com/trends/luxardo-limoncello.md) - [Summer-Suited Wine Ranges](https://www.trendhunter.com/trends/campo-viejo-contemporary.md)