As it has been arm knitted, the stitches are very loose and therefore would be amazing for a Spring evening, or even just sitting relaxing at home.
Hand-wash using cold water and mild/pH neutral soap/wool wash. Never use bleach.
Wrap your item in a towel to absorb most of the excess moisture. Please take extra care care not to twist your knitted piece.
Once most of the liquid has been absorbed out of your item, lay it flat in the shade so that it doesn’t lose its structure, and that neither the colour or the shape are damaged.