Suggestions for appropriate yoga mats or similar:

Ikea green folding mat: £22.00

https://www.ikea.com/gb/en/p/plufsig-folding-gym-mat-green-10262831/

Amazon folding thick mat: £28.99

https://www.amazon.co.uk/dp/B08CBDY6N7/ref=cm_sw_r_em_api_i_QGVKFb3RV7T3A

British Gymnastics
British Gymnastics

This Link shows a video of the ‘range and conditioning’ needed for tumbling competitions.
https://www.british-gymnastics.org/component/content/article/355-technicalinformationjudges/techinfonewslettersupdates/6095-trampoline-tumbling-dmt-range-and-conditioning

Leotards
A Star Leotards