Some travel wallets are safe from pickpockets, but it ultimately depends. Unlike other wallets you might throw into your luggage, travel wallets are designed to stay connected to you to prevent theft.
For example, undercover money belts that strap to the inside of your belt and act as an extra pocket are safe from pickpockets because they won’t even know your wallet is there. Additionally, a travel wallet for women that acts as an undercover bra stash is safe from pickpockets because they don’t have access to it.