Deluxe Contoured Masks

What's the difference between our Deluxe Contoured Masks and the Reversible Contoured masks?

 Deluxe Contoured Masks: Reversible Contoured Masks:
Available in multiple sizes (XXS-XL) Available in one size only (adult average)
Single Sided (not reversible) Double Sided (reversible)
Ear loops are adjustable and easily replaceable
Ear loops are adjustable and sewn-in, not replaceable
Nose wire: Removable or Built-In (according to your selection)
Nose wire is sewn-in/permanent
Filter pocket (openings at reverse)
Filter pocket (openings on both edges)