Thumb Holes: Keep your insulating layer in place while shedding layers mid-hunt

ultra-durable JackHammer heritage and performance

Thanks to its oversized deep diving lip

The exterior shell is built from a nylon elastane blend

Loaded with features from tip to tail

Sitka Jetstream Beanie Knives Thumb Holes: Keep your insulatingThe Jetstream Beanie was born from the same fabric as our celebrated Jetstream Jacket and will keep your head in the game while trudging up into the biting wind or glassing on an exposed ridgeline. A lofted micro grid fleece backer supplies warmth while the GORE TEX INFINIUM with WINDSTOPPER membrane blocks drafts from your dome and forehead. Fabric: WINDSTOPPER by Gore Tex LabsTechnology, Stretch woven polyester face. WINDSTOPPER by Gore Tex Labs: