← Field Guide Quick Reference

Layering Chart

While Moving

TempLayers
45-60°FHiking shirt only, pants if windy
35-45°FHiking hoodie, Alpha Freak, hiking pants, Buff optional
25-35°FAll mid layers, Buff, shell for wind only
20-30°FFull layering including shell, Buff, gloves

Static / Camp

  • Down puffy ON immediately
  • Shell over puffy if windy
  • Never rely on Alpha for static warmth

Sleep (Every Night)

  • Smartwool 250 sleep top and pants
  • Dry socks
  • Puffy inside quilt if temps drop

Core Rules

  • Wet hiking clothes = acceptable
  • Wet + cold + static = dangerous
  • Sleep layers are sacred — never hike in them
  • Calories are heat
  • Down puffy: Never hike in it. Put it on IMMEDIATELY when stopped.