Backpacking across Europe means you'll be taveling by mento and/or bus along great distances. Backpacks with detachable daypacks are nice but not a necessity here since you're typically staying in one city or location for a few days and then traveling by bus or train again.
Bring enough luggage to make your trip pleasurable but not a burden. A big backpack, daypack and rolling piece is just about right. You'll be able to find good waer and wash clothes at hostels. Plan your trip well and you'll gave an experience that will last a lifetime.See our most popular Backpacking Across Europe below.