Always read and follow the care instructions and any warnings on the garment label. And, follow the General Rules for washable fabric stain removal.
Soak the entire garment in a dilute solution of all-fabric powered bleach. Check the garment care label and check for color fastness first. And, be aware that during soaking all colors may be lightened.
If the stain remains and the garment is colorfast, soak the entire garment in a dilute solution of liquid chlorine bleach and water. Again, test for colorfastness first.
Caution: Chlorine bleach may change the color of the garment or cause irreversible damage. Therefore, it is important to check for color fastness before using. If the stain does not come out within 15 minutes of bleaching, it cannot be removed by bleaching, and any further exposure to bleach will weaken the fabric.
Note: To check for color fastness to liquid chlorine bleach, mix 1 tablespoon of bleach with 1/4 cup of water. Use an eyedropper to put a drop of this solution on a hidden seam or pocket edge inside the garment. Let it stand two minute, then blot dry. If there is no color change it is safe to use the product. Powered bleaches have directions for doing colorfastness tests.
There are also a number of dye removers/strippers, such as one from Rit, which are available in drug and grocery stores. However, color removers will also take out fabric colors as well as the stain.
HANK'S SURPLUS TACTICAL ASSAULT 3 DAY BACKPACK
At only 4 pounds, Hank's Surplus packed a punch with its Assault 3 day Backpack. If it's an awesome assault pack you need, you’ll find it in the tactical Assault 3 Day Backpack. Made with super strong 500D CORDURA® Classic fabric, this bag is designed to endure anything and it comes with strong nylon webbing. For storage, this pack has three main compartments with two nylon mesh pockets and inside hydration pocket with drain port. Learn more about this technology. Shop for this technology>
ATTITUDE SUPPLY SACK PACK
Made with coated ripstop Nylon fabric on top and 500 denier coated Cordura® Fabric on bottom. Sack Pack features include: Big, outer pocket with waterproof YKK zip closure; Double stitched with Nylon threads; Light loop to be seen during night rides; Chest strap for action sports; and can be folded in its inner pocket for convenient carry. Handmade in Milan, Italy. Learn more about this technology. Shop for this technology.