Made more breathable and resilient thanks to Zegna's innovative wool, the black High Performance™ wool crewneck is a perennial essential. Classic ribbed trim frames the pure wool sweater's refined knit. PRODUCT CODE UEM00A8-110-K09. FIT AND PRODUCT DETAILS: • 18 gauge • Ribbed crewneck collar • Long sleeves • Ribbed trims • Breathable yarn.