This is the new FC Barcelona Third kit for the 2013-14 season by Nike which is available here.
The all black kit features yellow trim as well as the Catalan "Senyera" flag colours on the collar and the inside of the sleeve cuffs on the shirt. It will be worn as an alternative to the previously released Home and Away versions.
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The Senyera also features on the back of the socks and the Qatar Airways sponsors is mounted on the front of the shirt in white, with Unicef on the back in yellow.
As usual with modern Nike outfits, the kit is made with recycled polyester. The shirt and the shorts are manufactured from up to thirteen recycled plastic water bottles.
The Barça kit weighs 150 grams, again lighter than previous Nike designs and includes Dri-FIT technology, removing sweat from the body through the weave, in order to keep players fresh and dry. There are also ventilation zones and a mesh panel that runs across the back.