What software do topshop etc use to get best photos so you can see back of garment even though its on a mannequin...ebay sellers use it also

Hi just interseted to know what software some sellers use so that you can see the back of clothing from the front even though its on a mannequin...like you can see through the mannequin???.....like topshop etc

i use photoshop at the moment to take the colour from the background etc...but want to do proffessional standard photos if possible