Keystone Promotional Navy Laptop Sleeve Mockup

Photo-real product mockup of a navy laptop sleeve with "keystone promotional" logo printed at left chest small. Mockup style: outdoor lifestyle, bold red + white logo palette. Studio-grade photography, sharp focus, natural fabric texture / mug ceramic / paper grain. Magazine-quality merch shot, no watermarks. Logo is generic placeholder typography — no real-brand marks. Realistic product proportions. Target search intent (rendered visually, no on-image text): "keystone promotional" (en).