This style is classic bit stylish.
The key to an awesome Bob is to get a style that fits you.
Some great products for this style is as follows.
The shampoo: Nairobi detangling and moisturizing
The conditioner: Nairobi Humectasil
When blow-drying use : Nairobi Foam Wrap.
The Heat Protectant: Nairobi Sheer Shine
Make sure that you get a trim as well.
Wrap at night and also keep your scalp moisturized. Reference