Many snowboarders and skiers can comfortably fit into multiple sizes of goggles, but there are some general guidelines that can help you determine the right comfortable size. One of the simplest ways to think about a goggle’s frame size is that it often correlates well with the size of your head. So if you wear a small helmet then consider a small goggle frame and if you wear a large or extra-large helmet then choose a larger frame. When you use a medium to large helmet try a medium frame size.
Small frame: these goggles are designed to fit kids and adults with smaller faces.
Medium frame: this goggle will provide the right fit for most people.
Large frame: these goggles are primarily for those with larger faces.
OTG goggles (means: over the glasses) are specially designed to allow you to wear your prescription eyeglasses under the goggles. This type of goggles are deeper than the regular ones and are equipped with channels to allow for the arms of your glasses. In addition, OTC goggles are a less expensive option than buying a goggle with a custom prescription lens.
Many manufacturers are also producing large, oversized goggles in order to provide you with more peripheral vision. However not everyone’s face fits a larger goggle, nor are all helmets compatible with them. Wearing a larger goggle will provide you with more lens for the amount of frame, helping you get the widescreen, full director’s cut of your winter adventures.