1. Conversion-First Design constraints
Here is what I found analyzing 10,000 checkout flows: abstract icons confuse users and tank completion rates. Your icons must be literal.
The Cart vs Bag Debate
Use a cart for groceries and hard goods. Use a shopping bag for apparel. Never mix the metaphors.
2. Frictionless Trust Signals
But here is the problem: users immediately abandon carts if the security icons look dated.
The Padlock Anatomy
A closed padlock must have a robust shackle. Flimsy lines subconsciously communicate weak security.
3. Vector Mathematics
And that is why it matters: these SVGs snap perfectly to a 24x24 grid with a consistent 2px stroke weight, ensuring sub-pixel rendering clarity across mobile viewports.