You can change you size at anytime by logging into your personal Member Account page. On the left hand side choose the subscription for which you want to change and select EDIT under Update Your Information.
There you will be able to update your size preferences. You will also have the opportunity to change your type of package and length if you so wish.
If you do not want to make any other changes, simply select the same Subscription Term that you had previously to keep everything in your subscription as it was. Hit Change and your subscription will be updated in our system.
Note: In order to guarantee that your change goes into effect for that month we require that all requests be done before the 8th of each month. Requests made on or after the 8th will apply to the following month's shipment.