Photics HS Thermo Hooded Jacket Men. The world's first laser-fused, waterproof down jacket. The game changer: Mammut Laser Fuse Technology™ uses laser light to join two materials, and so creates completely sealed seams without needle holes. No water penetration, no loss of down. Precise body mapping through the unrestricted design of the insulation zones. Photics. The revolutionary new down jacket.