Equal parts comfort and durability. Dual-density technology layers our signature soft footbed with a tough outer shell for all-day comfort that lasts. Duet Sport Clog Kids Details: Croslite™ material footbed for lightweight comfort. Tough outer shell for durability. Non-marking Croslite™ material outsole. Ventilation ports offer breathability and accommodate Jibbitz™ charms. Easy slip-on style.Give your little one a hours of playtime fun with this clog from Crocs. The Duet Sport clog features a breathable synthetic upper with a slingback strap for a secure fit. Beneath, a grippy manmade sole delivers a sure step, indoors and out.