It is very easy!
1- Navigate to the subscription plan of your choice
2- Press the Buy button
3- Enter your information and finish the payment process as you normally would
4- If you have not yet created your user account, you will need to do so at this time
5- Access the web with your user account and you can select as many garments as your plan includes. Instructions will be sent to your email in case you have problems.
6- The shipment will arrive in a maximum of 2 days. Enjoy it!