The easiest way to obtain the extra strap option is to just add £10 to your selected reward.
For example, when you select the super early bird leather collection. You can manually add £10 to the pledge. We'll see this and contact you towards the end of the campaign to confirm your configuration.
For now you just need to decide between the leather collection, metallic collection, or both.
Our rewards are split into those three options and we'll be sending you a message once the campaign is over to get your specific details (order and shipping).
Don't see the answer to your question? Ask the project creator directly.