From their website:
What are your baggage fees?
When purchased at time of booking, a fee between $14.99 and $29.99 for the first checked bag and between $14.99 and $29.99 for the second checked bag will apply per person, per segment. If purchased at flight check-in, $35 for first checked bag and an additional $35 for second checked bag will apply per person, per segment. In all cases additional higher fees will apply for three or more checked bags. Bags that are "Gate Checked" will incur a $35.00 fee per bag, per segment.
What are the restrictions and requirements for carryon baggage?
Carry-on bags must comply with the following baggage regulations:
Each e-ticketed passenger is allowed to carry on the aircraft one bag
plus one personal item.
The exterior dimensions for a carry-on bag must not exceed 9" H x 14" W x 22" D. This measurement includes wheels, pockets, handles and decorations.
The bag must be able to fit under your seat or in the overhead compartment.
Examples of personal items include:
Male or female purse
Briefcase
Laptop computer
Camera case
Diaper bag
Portable electronic devices of similar or smaller size to items listed above
The exterior dimensions for a personal item must not exceed 9" H X 16" W X 19" D (this measurement includes wheels, pockets, handles and decorations)
The personal item must be placed under the seat in front of you
Examples of additional items that are allowed on the aircraft, in addition to the free baggage allowance, include:
Food items for immediate consumption
Mobility aids or assistive devices, such as wheelchairs, walkers, canes, crutches, strollers, etc.
One box or bag of duty free merchandise
A coat or jacket
An umbrella
One item of reading material