Photics HS Thermo Hooded Jacket Men. The world's first laser-welded, waterproof down jacket. MAMMUT® Laser Fuse Technology™ connects two textiles by laser light and creates totally sealed seams without pinholes. No penetration of water, no leakage of down. Precise body mapping due to complete design freedom of the insulation zones. Photics. ISPO Award Winner 2019: The revolution of the down jacket.