Featuring our most versatile merino jersey fabric, the 200 Sonebula Long Sleeve Half Zip Hood is a technical base layer that provides ample warmth whatever the activity. Icebreaker Mens Merino 200 Sonebul LS HZ Features: Soft merino fibres that regulate body temperature and naturally resist odour Gusseted underarms for mobility and comfort Raglan sleeve construction for mobility Fitted hood designed to fit under helmet Flatlock seams to prevent friction Drop tail hem for added coverage Zipper chin guard to prevent friction Thumb loops to keep your sleeves in place and hands warm