CHARITY could be trendy..even sexy.

Just how sexy? Take a look at the swimwear show, at the BillaBong's Second Annual Design for Humanity event.

The retail chain in the USA held the event on June 4 in Hollywood, California, for the benefit of a non-governmental organisation SurfAid, to show solidarity with people in the remote areas of Indonesia.

The BillaBong girls made sure the cause would get attention, scorching the ramp with trendy bikinis, tankinis, monokinis and some chic in-betweens.

The show mixed psychedelic 70s colour palette and the super-shorts, matched with the classic 60s bouffant-and-out-turned kohl look.

Stuff we loved: The monokini with bold, blue stripes. Pinks and greens coming together in geometric prints and bright halter-necks flaring into a robe at the waist.

Accessory alert: Metallic is in, every way you look!. Chunky bangles, gladiator shoes and funky wedges - you can go all out in metallics, yes, even with swimwear.

Check out the complete collection.

Photograph: Getty Images / Michael Buckner