Bobi Long Sleeve Thermal V Neck Top in Gray. - size M (also in ) Bobi Long Sleeve Thermal V Neck Top in Gray. - size M (also in ) 56% cotton 40% modal 4% spandex. Thermal knit fabric. Stretch fit. BOBI-WS2028. 547 12712. Bobi is an LA-based line of dresses and tees made from some of the highest quality jersey at an affordable price.