The TUMI sales associate claimed this backpack is water resistant -- it is NOT. I stood in light drizzle, under an umbrella, for 5 minutes while waiting for a shuttle, and my laptop had water on it. I dried it off and it happened again in my five-minute walk home from the subway. These zippers should not have been used in an upward-facing position because they leak profusely. Really too bad, because it's otherwise an attractive, slender-profiled and comfortable backpack, but for this price it should not have such a major design flaw.