Mike Nolan and Jack Del Rio are ready to suit up.

The San Francisco coach and his Jacksonville counterpart have

the NFL's permission to wear dress suits designed by Reebok during

two games this season.

Nolan is expected to debut his old-school outfit -- a black suit,

a white shirt and a red-and-gold-striped tie -- at the 49ers' home

game against Seattle on Sunday. Del Rio also will wear a

suit-and-tie ensemble in Monday night's home game against the

Giants.

NFL spokesman Brian McCarthy said the 49ers coach has permission

to "test-drive" the suit at two games this season.

"Working with Reebok, they were able to come up with something

that should work for him," McCarthy said.

Nolan first broached the idea shortly after he was hired by the

49ers in 2005. He believes the ensemble will project an image of

authority while also honoring his father, Dick, the 49ers' coach

from 1968-75, and Hall of Fame coaches such as Tom Landry and Vince

Lombardi.

But the NFL couldn't immediately give permission, citing its

lucrative outfitting contract with Reebok. Nolan has worn pullovers

and polo shirts during his tenure, but has worked with Reebok's

designers to come up with the natty ensemble he's expected to show

off Sunday.

Dan Reeves is thought to be the last NFL coach to wear a suit on

the sideline. Coaches have been required to wear team-issued

clothing since 1993.

Del Rio is expected to wear his suit again at the Jaguars' game

against Indianapolis on Dec. 10, and Nolan will suit up again at a

game still to be determined.