What is "shellsuit"

Usage examples of "shellsuit".

Queueing at the snack stall with all the other weight problems and skin conditions, among the multiple single mothers in crayon-color beachwear, the splat and splotch of English skin, beneath treated hair, and all the sticky children each needing its tin of drink, Richard watched the joggers pounding the outer track in scissoring shellsuits of magenta, turquoise, of lime or sherwood green.

Suzi started to laugh, lost in a burn of elation as dustsheets took flight and her short hair whipped about, shellsuit trousers flapping wildly round her legs.