{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:GetObject",
      "Resource": [
        "arn:aws:s3:::your-bucket/skins/*",
        "arn:aws:s3:::your-bucket/vehicles/*"
      ]
    },
    {
      "Effect": "Allow",
      "Action": "s3:ListBucket",
      "Resource": "arn:aws:s3:::your-bucket",
      "Condition": { "StringLike": { "s3:prefix": ["skins/*", "vehicles/*"] } }
    }
  ]
}