£51
PRISM2's versatile black high-rise Nurturing leggings are chlorine-resistant which means they can be worn to swim as well as when working out or lounging. They're crafted in Italy from stretch jersey with diagonal leg stripes and are eco-dyed according to Greenpeace's detox protocol.
PRISM was launched in 2009, by founder/creative director Anna Laub – an ex-style editor – born out of a desire for optical glasses that were both fashionable and functional.