This solar-powered jacket can glow ‘like kryptonite’ for 12 hours
The Vollebak jacket is actually grey until the lights go out.
![](https://www.expressandstar.com/resizer/v2/OPMVFZWQKFGF3KPVCMBAWITDXE.jpg?auth=550b92636cf4b233130fce3bc9ba7671339581d62ea3133dc9eabc5c12572885&width=300&height=225)
A solar-powered jacket designed to keep people seen when out in the dark can glow “like kryptonite” for 12 hours.
The Solar Charged Jacket from Vollebak is actually a light grey colour until it gets dark and then it shines brightly after only a short charge.
![The Solar Charged Jacket from Vollebak (Sun Lee/Vollebak)](http://content.assets.pressassociation.io/2017/09/13115059/1640ef74-f4a5-4d87-b85a-95a1bedd14d4.jpg)
“It’s lightweight, 100% waterproof and breathable, and stretchy – and when it’s dark, it glows like kryptonite.”
![The Solar Charged Jacket from Vollebak (Sun Lee/Vollebak)](http://content.assets.pressassociation.io/2017/09/13115050/99b617a2-3adf-4de9-82ab-f1a7822f5124.jpg)
But it can also be powered by any light source available, a headlight of a car, a mobile phone torch, even indoor lighting.
Light can also be directed across the clothing to make certain parts of the jacket glow more brightly.
![A smartphone is used to power The Solar Charged Jacket from Vollebak (Sun Lee/Vollebak)](http://content.assets.pressassociation.io/2017/09/13115916/b6c696df-7b79-4972-8814-b0fdda25eb1a.jpg)
The core technology that allows the jacket to glow is its membrane – an ultra thin layer housed inside a translucent mesh that keeps rain out and lets sweat escape.
Key to its glowing ability is the membrane’s phosphorescent compound which rapidly stores any light it comes into contact with and re-emits it slowly over time.
![The Solar Charged Jacket from Vollebak (Sun Lee/Vollebak)](http://content.assets.pressassociation.io/2017/09/13115054/4215587e-e7fd-422a-b099-03f29cfc34aa.jpg)
![The Solar Charged Jacket from Vollebak (Sun Lee/Vollebak)](http://content.assets.pressassociation.io/2017/09/13121149/f22589fe-9a9d-49b6-b356-77caca948f1a.jpg)
Steve said: “Our aim is to make the future of sports clothing and one of the areas we’re really interested in is how clothes can respond to the environment you’re in. With the Solar Charged Jacket, we wanted to create something that would help you feel safe and superhuman when you’re out at night.”