Although the size limitation of 22 x 18 x 10 inches is non-negotiable, copyright does not have a tight weight limit for carry on luggage size spirit air, in contrast to many other airlines. As long as it fits in the sizer and can be hoisted into the overhead bin without assistance, you can bring a very large carry-on. Flexibility is provided, but clever packing is also given more impo... https://airlinesofficedesk.com/blog/spirit-airlines-carry-on-size/