Adidas Originals Tubular Nova Primeknit Slip On Trainers. Black sock like breathable, flexible Adidas PrimeKnit uppers. Textile lining. EVA midsole for lightweight cushioning. Tubular EVA outsole for lightweight flexibility and grip. Adidas signature branding on the heel. These super cool trainers from Adidas are designed to adapt to the shape of your foot and the soles are inspired by inflatable bicycle tyres.