Layering is the secret weapon for warmth and comfort no matter the conditions

With the lvl system, it provides flexibility to build your best temperature regulating set tailored to the individual. 

Remember – cotton kills. Doesn’t absorb the moisture, sticks to skin and creates coldness.


509 Pro Recommendations for layering your base best: 


FZN MERINO

  • Merino Wool & Bamboo blend
  • Next to skin comfort
  • Fast-drying
  • Odor Lock Control
  • Stay Dry / Moisture Management – wicks away sweat and absorbs up to 30% it’s weight
  • Temperature Regulation – Naturally controls temperature by absorbing and releasing moisture
  • Best for temps 20ºF and above (when worn alone)
  • Intended to fit close to skin


*Available in a one piece or top & bottom combo sets with various styles

* Men’s and Women’s specific fits



LVL 1: Lightweight

  • Purpose: Ideal for mild conditions or as a base layer.
  • Features: Light insulation, high breathability.
  • Best For: Early season rides, high-intensity activities, or as a base layer under heavier garments.
  • Cold Armor Technology – polyester 
  • Lightweight and moisture wicking
  • Cozy brushed internal fabric
  • Keeps rider dry and comfortable
  • Best for temps 20ºF and above (when worn alone)
  • Intended to fit close to skin


*** Available in a one piece or top & bottom combo set

*** Men's and Women’s specific fits


LVL 2: Midweight

  • Purpose: Perfect for cooler weather.
  • Features: Balanced insulation and breathability.
  • Best For: Moderate cold conditions, layering under a jacket, or wearing alone during active pursuits.
  • Cold Armor Technology – polyester 
  • Lightweight insulation mid-layer 
  • Polyester knit fleece enhances warmth but remains breathable
  • Comfortable to wear as lounge/causal piece

  • Best for temps 20ºF - 0ºF
  • (when worn with a LVL 1 or merino underneath)
  • Intended to fit comfortably to skin or allow for LVL one base layer



*** Available in top & bottom combo set 

*** Men's specific fits


LVL 3: Heavyweight

  • Purpose: Designed for cold weather.
  • Features: High insulation, good breathability, and water resistance.
  • Best For: Cold days on the mountain, layering under a shell, or wearing alone in dry, cold conditions.
  • Extra insulated mid-layer for warmth
  • Lightweight packable or easy layering piece under outer layer and over base layer
  • Best for temps 0ºF -  -20ºF 
  • (when worn with a LVL 1 or merino underneath)
  • Intended to fit comfortably with LVL 1 or 2 underneath


*** Available in zippered jacket

*** Men’s and women’s specific fits


LVL 4: Heavyweight Plus

  • Purpose: Built for the harshest conditions.
  • Features: Maximum insulation, excellent breathability, and superior water resistance.
  • Best For: Extreme cold, deep backcountry adventures, or long days in the snow.

RINOFZN MERINO