HUGO BOSS Black Leno O Jumper In Black, Slim Fit. An extra fine merino wool knit jumper with a ribbed crew neck. Ribbed knit cuffs on the long sleeves and a ribbed knit waistband with the signature dark metal HUGO BOSS logo tag situated on the lower left above the waistband. 100% Virgin Wool. Brand New Quality Collection Of HUGO BOSS Black Jumpers Live Online UK.