Amazon Essentials Men's Fleece Open Bottom Sweatpant (Available in Big and Tall)

My husband is 6'5" what size will be long enough

Are the ankles at the bottom elasticated or non elasticated? Thanks.

I chose the size as 35-37 waist but when i went to check out the joggers' size was quoted as "s" in both cases. can i trust that these will fit?

Where are the tall options as written in the product description ‘(available in tall & big)’ but I can only see big options.