Designed as the ultimate travel and layering piece, our 80 GSM PAKAFILL® insulation rivals the weight of any Nano Puff on the market and outperforms the warmth. Designed with a 20dn stretch fabric, this lightweight and packable puffer is made to move with you so you can focus on enjoying what you do. USE Hiking, skiing, climbing, belaying friends, and traveling from city to slope MATERIALS Insulation: PAKAFILL® 80 GSM // Shell + Lining: bluesign® Certified Nylon WEIGHT Small = 0.46kg This technical lightweight jacket has a water-resistant outer shell with a mountain-grade warmth to weight ratio. It's packable features make it portable and flexible. Perfect for traversing mountains and belaying friends. Made with PAKAFILL®, the warmest ethical insulation in the world.