personal protective equipment is laying off 150 workers after failing to win a new federal contract.Stanfield’s Ltd. of Nova Scotia, famed for its long johns and boxer shorts, switched to making medical gowns for front-line health workers at the outset of the pandemic.But the historic Truro clothing manufacturer was left out of the most recent round of federal contracts.All nine of the successful bidders on a new request for proposals for medical gowns are in Canada’s three most populated provinces: Ontario, Quebec and B.C.Jon Stanfield, the chief executive of the fifth-generation family firm, said he is disappointed in the tender process.“They missed a significant part of the country and a significant player within the industry,” he said.