the membrane on the inside of the Olympic Jet material forms an almost impermeable barrier against moisture and wind

while two other sizes are available in the Raincover I and III

A precision cut

Our drinking system allows liquid to be continuously supplied

osprey siskin 12 siskin backpack Category_Beanies Men Casual the membrane on the insideDesigned for days on the trail, the Siskin 12 is a technical and high performance hydration pack which balances tough and durable construction with impressive organisational capacity and a progressive, stylish aesthetic. WEIGHT: 0. 7KG DIMENSIONS (CM): 47L 23W 22D FABRIC 210D POLY HONEYCOMB