Always read and follow the care instructions and any warnings on the garment label. And, follow the General Rules for washable fabric stain removal.
The best way to deal with crayons is to get advice right from the horse's mouth....Crayola! See their removal tips at their web site.
For another option, here's what another source says: Scrape excess crayon with the dull edge of a butter knife.
Wash in hot, soft water with soap, such as Ivory and 1/2 cup baking soda for 10 minutes.
If the stain remains, work soap paste into the stain. Wash 5 minutes. Rinse.
To remove any remaining color use bleach or color remover as safe for the fabric. Always test for color fastness.
TOPO X SALOMON SHOES
Topo Designs and Salomon got together to create these fashionably functional shoes that are "Dedicated to authentic mountain heritage and functional design". Made with CORDURA® Classic fabric these shoes are built to last and look great while doing so! 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.