Sitka M's Grindstone Work Jacket

Sitka M's Grindstone Work Jacket

Sitka Grindstone Work Jacket – Windproof Insulated Workwear Built to Endure

Some jackets are built for comfort. Others are built for performance. The Sitka M’s Grindstone Work Jacket is built for both—and then pushed far beyond. Engineered as part of Sitka’s most durable workwear collection to date, this jacket is designed for early mornings, frozen fence lines, long days in the shop, and unforgiving weather that doesn’t care about excuses.

Cordura® Durability Meets WINDSTOPPER® Protection

At the core of the Grindstone Work Jacket is an exceptionally durable laminated exterior born from a collaboration between GORE and Cordura®. The 100% nylon Cordura® Oxford fabric delivers abrasion resistance that stands up to heavy wear, while WINDSTOPPER® by GORE-TEX LABS provides complete windproof protection to block cutting gusts. This combination creates a jacket that shields you from the elements without sacrificing mobility or breathability.

Insulated Warmth Without the Bulk

Inside, 100 grams of PrimaLoft® Silver synthetic insulation provides reliable warmth that performs even in damp conditions. A rigid, adjustable hood with low-profile Cohesive® welded cord locks ensures secure coverage when temperatures drop. Thoughtful storage—including magnet-closure chest pockets, a zippered chest pocket, secure handwarmer pockets, and an additional rear hem pocket—keeps tools and essentials within reach. Lycra storm cuffs and a drop tail hem seal out drafts, making this jacket ready for extended exposure in cold, windy conditions.

Key Features:

• Exterior crafted from 100% nylon Cordura® Oxford fabric for exceptional durability

• WINDSTOPPER® by GORE-TEX LABS provides 100% windproof protection

• 100 grams PrimaLoft® Silver synthetic insulation delivers dependable warmth

• Rigid, adjustable hood with low-profile Cohesive® welded cord locks

• Center front zipper with integrated windbreak

• Magnet-closure chest pockets and auto-lock zippered chest pocket

• Secure handwarmer pockets for comfort and storage

• Additional zippered pocket at back hem

• Lycra storm cuffs help seal out wind

• Drop tail hem enhances coverage

• Constructed with sustainable GORE® EPE laminate

• Style No. 600507

The Sitka M’s Grindstone Work Jacket combines Cordura® toughness, windproof WINDSTOPPER® protection, and PrimaLoft® insulation for serious durability and cold-weather performance.