https://www.mammut.com/p/1010-27960-5...
A lightweight summer jacket: the Skytree HS Jacket Men is made from a very lightweight and breathable 3-Layer Gore-Tex® Active material with Gore® C-KNIT™ lining technology for high comfort. High-quality and technical workmanship with taping and bonding. Raglan sleeves to prevent pressure points on the shoulders, caused, for example, by the shoulder straps on a backpack. Reflective details for a distinctive urban look – the Skytree HS Jacket Men.