The Light Weight ZEO-LINE fabric is thin but still keeps you warm by retaining warm air within the micro fiber yarn

Made from a semi perforated material the Waffle Hat vents well and keeps you sheltered from the sun

or quite possibly perfect for a lightning fast cool weather mountain ascent

and dry fast

Features expedition weight ZEO-LINE® fabric to provide excellent warmth and comfort during winter activities in even cold

Montbell Alpine Pack 80 Long Sleeve The Light Weight ZEO-LINE fabricThis 80L pack is constructed with high quality nylon ripstop and has a long list of features to provide excellent performance at a light weight while on multi night backpacking trips and extended expeditions.