The Sea to Summit Wilderness Wash is an all-in-one, multipurpose liquid soap for camping, backpacking, and travelling. Its super-concentrated formula goes a long way, and is safe and gentle for use on skin and hair, while tough enough for fabrics, pots and pans, and outdoor gear. Biodegradable and fragrance-free, it will not harm the environment when used in accordance with Leave No Trace principles. The leakproof bottle has a lid insert and secure cap to prevent spills, and both sizes are TSA-compliant for carryon liquids. The Sea to Summit Wilderness Wash 4-Pack comes in two sizes: four bottles of camp soap, each containing 1.3 ounces / 40 milliliters of concentrated liquid -or- four bottles of camp soap each containing 3 ounces / 89 milliliters of concentrated liquid. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.