The wool sweater on the right was made in Norway in the 1980s, and after many wears, it has become soft. Look at the label. To find a solid sweater — new or used — see what it’s made of.

Katrina Kaif wore a red traditional Norwegian knitwear sweater crafted from cashmere yarn and merino. It came with an oversized fit, featured a roll-neck collar, and had a boxy fit that looked ...