# Roll-Up Water Bag Bottles The Solar Waterbag Rolls and Unrolls to Enable Water Warming in the Sun By Michael Hemsworth | Published 2016-09-16 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/water-bag References: [yankodesign](http://www.yankodesign.com/2016/09/16/a-self-warming-water-bottle/) The Solar Waterbag is a versatile water bag bottle that allows users to fill the container with water and allow it to be [placed in the sun](https://www.trendhunter.com/trends/floating-solar-still) for warming. This makes the design exceedingly useful for camping purposes or for those that spend extended periods outdoors. For athletes, drinking cold water can be a shock to the system that requires them to physically burn more energy in order to warm the water up to be absorbed. The Solar Waterbag allows users to simply place the water bag bottle in the sun until it's the perfect temperature for consuming during [physical activity outdoors](https://www.trendhunter.com/trends/hydration-crossbody). The Solar Waterbag is the design work of Furong Zhang, Yuqian Jin, Hengchang Su, Jianzhuang Tian and Song Qiao. ## Trend Insights (Trend Hunter) - Score: 6.1/10 - Popularity: 84% | Activity: 92% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) > [Sports](https://www.trendhunter.com/sports) ## Key Themes ### Why This Trend Is Growing - **Solar Heating:** Designing solutions that use solar energy to heat and warm water could be a disruptive innovation opportunity for businesses in the camping gear industry. - **Outdoor Sports Drinkware:** Creating drinkware that caters to outdoor athletes' needs for temperature regulation could be a disruptive innovation opportunity for businesses in the sports equipment industry. - **Portable Water Containers:** Developing compact and portable water container solutions that meet users' needs for extended outdoor activities could be a disruptive innovation opportunity for businesses in the travel and tourism industry. ### Industries Being Reshaped - **Camping Gear:** Businesses in the camping gear industry could create innovative solar-powered heating devices and warm water containers for outdoor enthusiasts. - **Sports Equipment:** Businesses in the sports equipment industry could develop drinkware that caters to the specific temperature preferences of outdoor athletes. - **Travel and Tourism:** Businesses in the travel and tourism industry could design portable water container solutions that cater to the needs of travelers going on extended outdoor activities like backpacking and hiking. ## Related on Trend Hunter - [Pressurized Sun-Warmed Showers](https://www.trendhunter.com/trends/solar-camping-shower.md) - [Sustainable Hot Water Bottles](https://www.trendhunter.com/trends/yutanpo-2.md) - [Pump-Integrated Water Bottles](https://www.trendhunter.com/trends/bottle-bottle.md) - [Modular Travel Bottles](https://www.trendhunter.com/trends/tetra.md) - [Digital Tea Brewing Bottles](https://www.trendhunter.com/trends/bota-bottle.md) - [Customized Smart Water Bottles](https://www.trendhunter.com/trends/ocean-bottles.md) - [Backpack-Compatible Cooler Bags](https://www.trendhunter.com/trends/cooler-bag.md) - [Water-Holding Cooler Backpacks](https://www.trendhunter.com/trends/camelbak-chillbak-pack-30.md) - [Self-Heating Messenger Bags](https://www.trendhunter.com/trends/willtex-willcook.md)