Untouched World: Fine Merino Sustainable Fashion

How to Care for Your Iris Long Sleeve Shirt

How to Care for Your Iris Long Sleeve Shirt

By Untouched World: Fine Merino Sustainable Fashion | Published: 2026-10-20

Category: Tips & Care

Keep your Iris Long Sleeve Shirt looking its best with these simple care steps. Learn how to wash, dry, and store this cotton denim piece for lasting wear.

Quick answer

To keep your Iris Long Sleeve Shirt looking crisp and white, wash it inside out in cold water, air dry away from direct sun, and store it on a padded hanger to maintain its shape.

Why cotton denim needs special care

The Iris Long Sleeve Shirt is made from 100% regenerative cotton denim, a durable fabric that softens with wear. Unlike synthetic blends, pure cotton can shrink or fade if washed in hot water or dried on high heat. The close-fitting silhouette also means proper washing helps the shirt keep its tailored shape over time.

The challenge of keeping white shirts bright

White cotton shirts naturally yellow or dull over time due to body oils, detergent residue, and repeated washing. The Iris shirt’s supple denim can be especially prone to showing wear if not cared for correctly. The steps below focus on gentle cleaning and drying methods that preserve the fabric’s original brightness.

How to care for your Iris Long Sleeve Shirt

  1. Wash inside out in cold water: Turn the shirt inside out before washing to protect the outer surface from friction. Use cold water and a gentle cycle with a mild liquid detergent. Avoid bleach or optical brighteners—they can cause uneven fading on white cotton denim. Common mistake: washing right-side out can cause pilling and fade the Western yoke details faster.
  2. Air dry flat or on a line: After washing, reshape the shirt while damp and lay it flat on a drying rack or hang it on a padded hanger. Keep it out of direct sunlight to prevent yellowing. Do not use a tumble dryer—the heat will shrink the cotton and distort the close-fitting silhouette. Checkpoint: if you must use a dryer, choose the lowest heat setting and remove the shirt while still slightly damp.
  3. Iron on medium heat while slightly damp: For a crisp finish, iron the shirt on the cotton setting while it is still slightly damp. Use steam to remove wrinkles without pressing too hard on the pocket and cuff details. Iron the yoke and collar carefully to maintain their structure. Common mistake: ironing a completely dry shirt can scorch the fabric and leave shiny marks on the denim.
  4. Store on a padded hanger or folded: Hang the shirt on a padded or wide wooden hanger to preserve the shoulder shape. For long-term storage, fold it and place it in a drawer—avoid wire hangers that can stretch the fabric. Keep it away from direct light to maintain the white color. Checkpoint: if you notice yellowing under the arms, treat the area with a paste of baking soda and water before the next wash.

About this shirt

  • Iris Long Sleeve Shirt - White: Made from 100% regenerative cotton, ethically produced by Outland Denim. The supple cotton denim sits beautifully over Merino layers. Because it’s pure cotton with no synthetic reinforcement, you need to avoid high heat and harsh detergents to prevent shrinkage and maintain the soft hand feel.
    Iris Long Sleeve Shirt - White
    Iris Long Sleeve Shirt - White

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