The model was on hand to launch a new M&S campaign which encourages shoppers to save money on this season's fashions by donating clothes to Oxfam.
To kick off the initiative, Snowdon was ready for spring in a flowing printed maxi-dress, denim jacket and flat sandals. She also sported two Twiggy M&S tote bags, stuffed full of clothes.
Time for some spring cleaning!
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