The Fjallraven Men's Pak Down Jacket is compressible for camping, lightweight for backpacking, and surprisingly warm for winter casual wear. Stuffed with 700 fill down insulation, the Pak brings the warmth without the weight, and Supreme Microloft synthetic insulation at the sides and sleeves keeps bulk at a minimum. A fabric called Pertex Quantum stops the down from puncturing and protects you with windproof comfort. Both the hood and hem are adjustable, and both zippered hand pockets have internal pockets for your phone and valuables inside. Fjallraven included a separate bag that you can stuff this jacket into for trips.