A McALLISTER strap vest that's discontinued and one from Dunn's for cold weather. Hot weather a Browning LYON strap model. FILSON doesn't breathe and everywhere it touches you you'll sweat, its' uncomfortably stiff [as plywood] especially cold, takes forever to break in and when it does it needs rewaxing. It's a garment founded in the Alaskan Goldrush, who sadly, its' usefulness has come and gone. A romantic idea, like L.L. Bean pac boots, good for their day but modern MATERIALS HAVE LONG SURPASSED, THEM AND TIN CLOTH.