Your best bet with any winter gloves like ours is to hand-wash them with mild (neutral pH, e.g. Tide) detergent, and then hang/line dry. Some folks do machine-wash them, but we don't recommend that since it has a tendency to strip some of the water-repellent coating from the outer shell's fabric. Otherwise, the inks should generally be safe in a washing machine, but again, you must use a neutral pH detergent. As for drying, you definitely want to hang/line dry and never put them in the dryer (that will destroy the microfleece lining and make it really "pilly").