The Seattle Sounders could be using a new shirt design in 2015, if a jersey leak on Footy Headlines is to be believed. The site has been stunningly accurate with their jersey leaks in the past and this one suggests the Sounders will be wearing pinstripes. Their rendering also suggests the Sounders may be incorporating a different shade of blue as an accent color, although the accuracy of such a fine detail is hard to assess.
The shirt is in classic Rave Green, with a lighter green pinstripe pattern on the front panel. It's a standard and fairly basic design, with the XBOX, Sounders FC crest and adidas logo in their usual spots. Where one might expect Cascade Shale or Capital Blue, however, a darker blue circles the neck, arms and waist and provides the hue for the iconic three arm stripes.
The bands also appear to have some detailed texture - a crosshatch pattern just visible in what are clearly digital mockups and not photos of a production shirt. There will likely be a custom jock tag on the left side of the front of the jersey and another tag inside the neck. The jock tag will likely incorporate the Seattle city crest.
There is no sign of the secondary kits in this alleged leak, but it is Sounder at Heart's understanding that the "Away" kits will be a primarily white design.
Determining the accuracy of such leaks is difficult, but Footy Headlines, being focused on soccer apparel, is well known for releasing leaked images of soccer kits from around the world with mixed accuracy.
Fans should expect the official release of the new kits during MLS's "Jersey Week," generally a week before the start of the season.
UPDATE: Looks like the blue is more of the familiar shade: