Majestic Cool Base Jerseys

[seven4five20]

Hello all. Does anyone know when every MLB team started using the "Cool Base" style as their primary jerseys?

[rdeversole]

I don't think every team uses these as their primary. The Reds don't. In most cases, I think it's up to the player to use whichever one he wants. I've not seen Brandon Phillips wear one.

[AWA85]

Pretty sure a majority of the Reds are wearing the cool base, every one I have seen with tons of use on mlb auctions has been (Votto, Cueto) , as well as each jersey I have picked up recently.

[AWA85]

Also this may change in the playoffs, where it is colder temperatures.

[rdeversole]

What I mean is that they are issued both regular and cool base and it's up to the player to decide which he's wearing, not the team. Yeah, usually based on the temperature/weather.

[LastingsMilledge85]

Correct me if I'm wrong but I believe they debuted in 2007 and teams starting using them sparingly. In 2008 they became more prominent, but teams had sets of both. In 2009 teams like the Mets primarily used Cool Base jerseys and the knit jerseys were harder to come by. The same would go for 2010 and I don't even think the Mets use the older style jerseys any more.