Pros

Lowest cost

Easiest to install

Lowest profile (does not obstruct driver's rear view when retracted)

Consumes the least amount of bed space

Lightest option

Cons

Least secure. Often constructed of fabric with velcro or snap buttons on along the edges.

Can't support much weight atop of the bed cover

Offers least protection from the elements (rain, snow, etc.)

Must be manually opened/closed

Pros

Low profile (does not obstruct driver's rear view when retracted)

Can lock in any position

Great protection from the elements (rain, snow, etc.)

More secure than rolling/soft overs

Typically supports more weight atop of bed cover. May be used for additional workspace (model dependent).

Cons

More expensive (more than rolling/folding but less than electronic covers)

More complex to install (more difficult than most rolling/folding models but easier than electronic covers)

Heavier than most other models

Consumes more bed space than than roll-up (soft) bed covers or folding covers

Must be manually opened/closed

Pros

Can lock in any position

Great protection from the elements (rain, snow, etc.)

More secure than rolling/soft overs

Typically supports more weight atop of bed cover. May be used for additional workspace (model dependent).

Moderately priced (more than rolling covers, less than retractable covers)

Easy to install

Cons

High profile. Often blocks drivers rear view when folded in fully open position.

Consumes more bed space than than roll-up bed covers.

Must be manually opened/closed

Generally requires no tailgate to bed opened to unlock bed cover (no key to bed cover)

Pros

Great protection from the elements (rain, snow, etc.)

More secure than rolling/soft overs

Typically supports more weight atop of bed cover. May be used for additional workspace (model dependent).

Often available in color-matched paint or modern matte-black finish

Provides greatest amount of interior (enclosed) storage space

Cons

Most expensive option

High profile. Obstructs driver's rear view.

Often prohibits transporting oversized (tall) cargo

Difficult to install

Heaviest option