The Grindstone Jacket brings the rugged durability of a classic work jacket to the job site while enhancing comfort, function and weather protection with key technical upgrades. GORE-TEX INFINIUM with WINDSTOPPER Technology provides a barricade against the wind and PrimaLoft Silver insulation adds the warmth, weather protection and breathability needed to stay active and comfortable in the cold. Designed to move freely and featuring a durable double canvas construction, the Grindstone gets it done when Mother Nature brings the cold and wind to your workday.

FEATURES

• Large, open hand pockets
• Zip-secure chest pocket
• 80-gram PRIMALOFT SILVER insulation

SPECIFICATIONS

Fabric Details: ­80-gram PRIMALOFT SILVER ­insulation

Weight: ­24 oz

MPN: ­80029

Size Chart: ­

TECHNOLOGY

PRIMALOFT
Sitka utilizes a wide range of PrimaLoft insulation technology based on the intended end use of each garment. Through specialized applications and by body-mapping PrimaLoft, they fully leverage the benefits of each technology and optimize the end performance of their insulation layers.

GORE-TEX INFINIUM with WINDSTOPPER TECHNOLOGY
GORE-TEX INFINIUM WINDSTOPPER products offer complete windproof protection through a durable, lightweight, water-resistant and breathable membrane, to prevent wind from robbing heat from your core. GORE-TEX INFINIUM WINDSTOPPER products are available in a range of options from lightweight shells to garments with different levels of abrasion resistance, thermal comfort, stretch, and next-to-skin comfort.