kalsac is a Japanese original bag brand launched by CLASKA in 2025. CLASKA’s original bag series, which it had been producing for many years, was reorganized as a new brand, offering backpacks, shoulder bags, tote bags, and other styles made from leather and nylon. Its official concept is “For every day, and every era.” The brand offers bags as everyday companions that blend into daily life regardless of gender, age, or era, and pair easily with styles ranging from casual outfits to slightly more formal looks.
Concept
For every day, and every era.