The Obsidian Heat Reactive Jacket from Purple Mountain Observatory, UK. 

Details
The Obsidian range marks an ongoing narrative with fabric development and performance-driven design. Through applying a specialised coating to the fabric, micro-encapsulated agents are introduced. As temperatures increase, these molecules undergo a phase change, initiating the thermochromic process. Upon cooling, the colour reverts to its original state, offering a dynamic visual experience.

The articulated hood provides essential protection without compromising your field of vision, ensuring optimal functionality in demanding environments.

Key features include heat-sealed taped seams for enhanced waterproofing and YKK® Aquaguard® zips on the side pockets and centre front, accented by PMO-branded pullers for a refined technical finish. It also features two chest pockets with SunGrip® poppers for added storage.