Vintage 1970s Rainbow Belted Dress

Vintage 1970s long sleeve dress by Jo Lester. Fantastic rainbow striping at sleeves and pocket. Matching rainbow belt shows some wear and has hardened with age, but still wearable with care. String loops for belt, both intact. No materials tag but feels like unlined thicker polyester. Good vintage, preowned condition with minor signs of gentle wear. No size tag, estimated modern size M. Please see board photo for measurements and compare to a garment that fits you well.