@MT-Ed we're so sorry for the frustrating search results on our website. Sometimes our products sell-through quickly, which can lead to suggestions that are no longer available in all sizes. One thing that can help - as you search rei.com for a category of products (ex: women's shirts), along the left side you can select what sizes you want to be shown (image below). This will ensure that all results returned are indeed available in the size you are interested in.
