Standard Canvas â€“ Very little care is required for our standard canvas bags. If the fabric gets dirty, spot clean with a small quantity of dish or laundry detergent and a small brush. Rinse thoroughly and let dry. Do not machine wash, and do not bleach. Waxed Canvas â€“ Our waxed canvas has a distinct look that will improve over time. Waxed canvas is also highly water resistant. Depending on the level of wear, re-waxing of the pack might be needed. Filson wax (or any paraffin-based garment wax) can be used to re-wax a bag. Instructions for re-waxing can be found online or with wax instructions. Do not machine wash and do not bleach. Leather â€“ With any leather bag, conditioning the leather is imperative for extended and continued performance. Use a leather conditioner every 6-8 months (or more depending on use), and anytime after it gets wet, to keep the leather supple and pliable. A leather cleaner may be used before conditioning the bag to clear off any dirt or grime. Following these simple care instructions for your Duluth Pack bag will ensure many years of use. As always, we guarantee our products for life on all craftsmanship and hardware. Take care of it now so you may pass it down for generations to come.