BLK Pine Workshop bags and backpacks are American-made with American-made materials. BLK Pine workshop is essential to design in black & white and leather, sleek and neat effective construction, handmade quality. “Back to the original” materials including heavyweight duck canvas, waxed canvas, vintage wools, and vegetable-tanned natural leathers. Personality comes with usage over time. Choose your bag now from our selection: BLK Pine Workshop Tote Bag in Leather and Canvas, Briefcase, Slope Day Pack, Boston Bag Canvas, Messenger Bag, Canoe Pack Leather Canvas. BLK Pine Workshop bags now at E35 Shop.