Design Philosophy The FS260 Short Sleeve Jersey stays true to the FS260 ethos, of highly functional, no nonsense kit. The classic go-to jersey has been updated with new and improved fabrics and a new pocket system, tailored to excel on every big day out on the roads. Functional Storage. There's storage for everything you might need and more on this jersey, with three open rear pockets and a zipped security pocket for your card, keys and change for an end of ride reward.