Check out Arc’teryx LEAFs “Wraith – Featherweight Emergency Shell” system. Available in Overwhite and Multicam color.
Wraith Jacket
Extremely lightweight and compressible wind-resistant hooded jacket designed to fit over body armour or a softshell. Quiet, featherweight mini-ripstop nylon emergency shell. Wind-resistant, moisture shedding technical fabric has slight mechanical stretch to facilitate rapid coverage over kit in inclement weather. Helmet compatible Storm Hood™.
Wraith Pant
Extremely lightweight and compressible wind-resistant pants that slip on easily over boots. Quiet, compact emergency shell pant that fits over all outer layers. Side zippers and oversized knees accommodate easy, rapid dressing. Slight mechanical stretch in fabric resists snags and tears.