Bum bag by Nike, For those just-in-case necessities, Adjustable body strap, Secure clasp fastening, Branded design, Zip closure, Interior compartment. Nike dominates the sportswear industry with a fresh, stylish approach to casual apparel. Super-cool trainers and hi-tops lead the bold collection of footwear. Fashion-led collections reference directional detailing, with a punchy, modern colour palette taking centre stage, while comfort and durability remain at the brand's core.