A workwear collection so tough, our product team ran out of durability tests. The Grindstone Work Vest is everything that the Grindstone Jacket is, minus the sleeves. It's filled with the same warm PrimaLoft(R) Silver insulation and engineered with WINDSTOPPER(R) by GORE-TEX LABS, but the new hardwearing laminated fabric makes it even more durable than before. This beast of a vest is ideal for anyone who wants to protect their core while keeping their arms free for any task in the field or on the job.