Jajanken

Our Natural Tees are available in Premium and Classic styles, both crafted with a retail unisex fit for a modern look that’s close to the body without being too tight. Made from breathable 100% cotton, they offer comfort and style in every wear. Classic uses high-quality natural cotton, so you may notice small specks in the fabric — a natural characteristic that adds authenticity and charm. All styles may shrink slightly after machine washing and drying.

For a standard fit, men should choose their usual size, or go up a size for a relaxed look. For women, we suggest selecting one size down for a fitted look, or your regular unisex size for a comfortable, slightly looser fit.

For precise measurements, check the size chart above 👆.

Flip It: Always flip your tee inside out before washing to keep that artwork poppin’.

Wash Cold, Stay Cool: Toss it in with cold water—keeps the fit and the vibe just right.

Gentle Vibes Only: Set your washer to gentle mode. Your tee (and the design) will thank you.

Chill on the Detergent: Use a mild detergent—no need to go heavy, let’s keep it smooth.

Bleach? Nah. Keep that harsh stuff away—no fading or ruining your look here.

Air Dry for the Win: Hang it up to dry for max freshness. If you’re in a hurry, low heat in the dryer works too.

No Hot Presses: If you need to iron, avoid the design. Flip the tee inside out or cover it up—let's keep the art clean.

Every Koioki piece is made-to-order using the latest eco-friendly printing techniques, helping us reduce waste and avoid over-production.

Our apparel is crafted in factories that follow strict ethical standards.