Navy blue and white polk dot Fred Perry cardigan

I am helping my grandma downsize her closet as she downsizes her living space. This item was rarely worn, as she hasn’t had the occasion, or because her sensory needs. Her house is non-smoking and no pets, but mine has a cat (though we haven’t allowed him to try anything on lol). No wear / tear Dark blue White embroidered polka dots Buttons go halfway up US size 10 (M/L) She cut out the side tag for sensory reasons, so the fabric is unknown, but it seems FP uses a wool and cotton blend.