Yes. Even after you have submitted the booking, you can go ahead and make changes as necessary to the equipment you have booked (add/remove) as well as the people (including your companions). If you remove products, you will receive a refund by means of the payment method you had originally used. If you add products, you will be able to pay the difference online.
In order to adjust your equipment to your individual needs, your physical measurements (height, weight, sex, etc.) are very important. These can be entered later, even if you have already completed your booking.
To edit your reservation, please use the link contained in your email confirmation. Please note that reservations can only be edited or modified up to two days before the start of your scheduled rental period. At that point, changes will then have to be made at the time you pick up your equipment from the shop.