The Outdoor Research Allies Micro Gravity Jacket is, as the name suggests, a lightweight yet durable technical hard shell for military alpinism. Designed with agility and rapid movement in mind, this jacket performs superbly and is equally at home when conducting military vertical assaults, long ski insertions during cold weather operations or just providing a lightweight, waterproof, breathable three-layered fabric tactical jacket. This jacket is a must for those wanting a less bulky technical shell that will protect them from the harshest climatic conditions. FABRIC Membrane: AscentShell 3LOuter Material: 50D ripstop mechanical stretch plainweave Features FABRIC PERFORMANCE Waterproof Windproof Breathable Air Permeable Electrospun Membrane Movement-Mirroring Stretch (solids only) DESIGN FEATURES Helmet Compatible Halo-Hood with Hood Lock™ YKK AquaGuard™ Zippers Internal Front Stormflap Fully seam sealed Elastic Drawcord Hem Zip Chest and Hand Pockets Left Hand Pocket Doubles As Stuff Sack Carabiner Loop and Key Clip Dynamic Reach™ Underarm Panels Torsoflow side zippers Hook / Loop Cuff Closure