Always read and follow the care instructions and any warnings on the garment label. And, follow the General Rules for washable fabric stain removal.
Permanent inks are almost impossible to remove.
To have any chance you need to treat immediately. The first step is to force water through the stain before it dries to remove excess ink. Allow to dry.
Sponge the stain with dry cleaning solvent (read and follow the directions carefully, it is toxic). Allow the fabric to dry. Rub a liquid detergent into the stain. Rinse.
Soak the stain in warm water to which 1 to 4 tablespoons of household ammonia have been added.
Rinse and repeat if stain is lessoning. Launder.
Some inks on white fabric may be removed with a dye stripper. Follow package insturctions. For stains on colored fabrics, check for dye fastness in a hidden are before using. Also, be aware that these products will affect all colors on the fabric.
MEN'S HORIZONTAL DR. COOL SHIRT
This shirt is constructed using Coolcore's patented chemical-free moisture and sweat activated material to make sweat work for you. Rather than a simple wicking technology, the material delivers three distinct functions: wicking, moisture circulation, and regulated evaporation to reduce the fabric's surface temperature by up to 30%. Unlike other workout shirts Dr. Cool is chemical-free so that cooling benefits last the life of the shirt. Learn more about this technology. Shop for this technology>
KATHMANDU ARCHON 65L BACKPACK v4
If you're new to multi-day hiking, or enjoy tackling the occasional Great Walk, the 65L Archon is the pack for you: sturdy and reliable, made from tough Cordura® fabric, it has everything you need (bottle pockets, pole and bed-roll attachments) and nothing you don't. The easily adjustable RS2 harness has a small to XL range built in to the harness design. The padded and stiffened hip-belt and shaped alloy frame-stays transfer the load where it needs to be, while the padded EVA shoulder straps, adjustable sternum straps and padded back panel makes the trek over the Tongariro Crossing more comfortable. Learn more about this technology. Shop for this technology.