The Standard White Matte is an uncoated, paper-based material so it would not be resistant to moisture. We do carry weatherproof materials that are very durable and water resistant. I have included a link below for your review. https://www.onlinelabels.com/weatherproof-labels.aspx You are welcome to request samples of these materials for testing. Please visit the link below to request a few sheets at no cost. https://www.onlinelabels.com/samples

Can these labels fit on small/miniature water bottles for a baby shower?

Depending on the brand water bottle, the OL7800 may fit but we would recommend measuring your bottle to see what the exact dimensions are. Below is a link to a list of our water bottle label sizes as well as a link to our printable ruler. If you do not have access to a ruler, you can print our ruler at Actual Size or Scale 100% to measure your bottle. You may also want to consider the weatherproof materials if the water bottles are going to be refrigerated or placed in ice. This will protect the label as well as the print from moisture. Each product page will provide you with a full list of our adhesive materials which includes the weatherproof options. https://www.onlinelabels.com/water-bottle-labels.htm https://www.onlinelabels.com/articles/finding-your-label-size-printable-ruler.htm

Where is the option to have you print these in Maestro Label Designer? Maestro Label Designer: Create, design, and print your labels. No downloads necessary Free activation with purchase 100% compatible with all our products 100% compatible with all our products 100% compatible with all our products...

Due to the absence of side margins on our OL7800, this template cannot be used for custom printing through Maestro Label Designer. However, if your design does not need to be printed to the edges of the labels, we can arrange a printed order for you. Please contact our Customer Support Team at 888-575-2235 or by submitting a support ticket at the link below. https://secure.onlinelabels.com/support/SupportRequest.aspx