FZN Merino Hoodie
FZN stands for Five Zero Nine, not frozen, and that’s exactly how you’ll feel in the 509 FZN Merino Hoodie. The low-profile balaclava hood fully seals out biting wind, while the built-in facemask tucks away inside the collar until you need it. Naturally breathable, fast-drying, and odor-repellent—comparing this base layer shirt to grandpa’s wool knickers is like upgrading your sled from his 1978 Panther to a PRO-RMK®.
- Balaclava hood is fitted for use under a helmet
- Covert Collar is tucked away in collar when not needed, or pull out for full face coverage
- Materials: Alpine Merino - 250 GSM 20 micron wool, blended with 40% Bamboo Viscose, and 10% nylon for structure and durability
- Warmth: LVL 
Unisex Apparel Size Chart
Chest: Measured under arms and around the fullest part of the chest. Keep the tape level across the back and comfortably loose.
Sleeve: With the arm fully extended, measure the center-back of the neck, at the spine, to the wrist bone.
Waist: Measure around the natural waist line with a comfortably loose tape.
Inseam: Without footwear on, measure the inside of the leg, from groin to the floor.