It's the most wonderful time of the year ... and Isaiah Rodgers is certainly ready for it -- 'cause the Colts defensive back has copped some amazing light-up Rudolph and Santa cleats!!
TMZ Sports has learned the Indy star wanted to be decked out for the Colts' game against the Vikings on Saturday ... and reached out to cleat artist Rodney Jackson to get some Xmas-themed feet heat made.
Jackson -- who's been Rodgers' go-to shoe guy for several seasons -- tells us they both decided to go with the two most iconic Christmas characters for the spikes ... and they came out great.
The left cleat, featuring Santa, is wrapped in red velvet with white fur all over it.
The right shoe -- which comes with jingle bells -- has Rudolph's face painted on the toe with the bonus of a very shiny nose that lights up.
It wasn't an easy project ... Jackson told us it took two days to put the Nike cleats together -- from wiring the lights into the spikes to making Santa's beard on his own.
Happy holidays, indeed!