The Jason Markk Essential Kit includes a 4 oz. bottle of our high quality, concentrated Deep Cleaning Solution and Durables Cleaning Brush. Our gentle, foaming solution safely and effectively cleans and conditions, removing dirt and stains that are deeply embedded into the material. Our 4 oz. Deep Cleaning Solution cleans up to 100 pairs of shoes and is safe to use on most colors and materials including leather, suede, nubuck, canvas, cotton, knit, vinyl, rubber and more, making it ideal for white sneakers, running shoes, work boots, high gloss dress shoes, and more.* Our Deep Cleaning Solution is EPA Safer Choice certified and a 100% USDA Certified Biobased product. Jason Markk Quick Wipes are the original dual-textured shoe cleaning wipes. The textured raised dots paired with Jason Markk's superior cleaning solution gives you the ultimate cleaning power to keep you fresh on the go. Please note: Quick Wipes are not to be used directly on suede and/or nubuck.