Hi is this the shade you are after ?
http://www.fabricland.co.uk/
Swimwear fabrics Page one,
LYCRA emerald-LEPRECHAUN GLOSS SHINE £5.88per mt. 147cm wide or 58inches 20% SPANDEX 80%NYLON 190gms.
Could get 1m of it and make you a nice unlined swim thong.