Soft Sided Cups Our Soft Sided Cups are available in different sizes. There are two sizes available for the cups. We have clear cups and translucent cups. The Soft Sided Cups are made of PET, also known as Polyethylene Terephthalate. The Polyethylene Terephthalate is recyclable what makes the Soft Sided Cups eco friendly. The Soft Sided Cups can be printed with your design or logo, which makes them suitable for weddings, events or just to use them at the office. Your logo can be printed in one of our 23 colors.