We only list UK sizes. If you're not sure what your UK size is, please click on ‘Size advisor’ or review our size guides.
These bright cotton-rich leggings are inspired by the Roald Dahl™ classic 'The Twits'. Regular fit with an elasticated waist. Designed in collaboration with the Natural History Museum and featuring a certified fun fact from the scientists. All of the cotton for our clothing is sustainably sourced and always will be. Every unique Roald Dahl™ & Natural History Museum™ product label doubles up as a playing card – collect the set for hours of fun!
You may return unused products within 35 days of purchase.
How to return:
1. FREE instant returns in store. The select M&S click and collect stores can be found here
2. Returns Hub. Drop your package at your nearest post office using a pre-paid label. The cost of postage is provided at a discounted rate and will be deducted from your refund. Select this option and print your label here.
3. Self-postage return to the UK. Return your parcel at your own cost through your preferred carrier. Print your returns label and note here.
Express delivery: 3-5 working days. FREE over €60, otherwise €7.95.
Store collection: 6-8 working day. FREE to collect in select stores.