Bobi Light Weight Jersey Twist Tee in Mint. - size XS (also in ) Bobi Light Weight Jersey Twist Tee in Mint. - size XS (also in ) 100% cotton. Front twist detail. Jersey knit fabric. BOBI-WS1990. 517 81158. Bobi is an LA-based line of dresses and tees made from some of the highest quality jersey at an affordable price.