Sustainable sneaker start-up Allbirds is selling sweaters, T-shirts

Good News Notes: “The start-up known around Silicon Valley for its comfy slip-on sneakers is hoping to take over another part of your closet. Allbirds is venturing further into the clothing category, debuting four new items Tuesday: A T-shirt made out of discarded crab shells; a wool cardigan; a wool jumper (a Briticism for a…