Bella Long Sleeve Top & Boxer Pajama Set An updated take on our menswear inspired pajamas made in the finest Peruvian Pima Cotton, with modern wide trim and a looser, easy- comfort fit. So soft you won't want to take them off…don't say we didn’t warn you! Bella PJs Comfort fit long sleeve top and boxer set for loungewear and sleepwear. Super soft Peruvian Pima cotton and modal set with contrast color at sleeves and legs. Relaxed, looser, comfort fit. Drawstring waist mid-thigh length boxers. Relaxed, looser fit long sleeve button down top.