NWT Superdry Vegan Retro Sleek Trainers - White/bowling Green. Size 10 Take a step back to the golden age of trainer design. Styling cues come from classic sports shoe designs and give the Retro Sleek trainer an uncluttered feel that will add a certain touch of style to your casual outfit. Vegan Society certified Soft-touch uppers Foil embossed logos Embossed heel counter Textured gum sole Our trainers contain no animal products: they have passed up to 172 checks and are certified by The Vegan Society.