Critter Potato Sack: The Ultimate Warmth Boost
Elevate your sleep system with the Critter Potato Sack, the ultralight secret weapon for a warmer, cleaner, and more comfortable night outdoors. This sleeping liner uses the advanced Polartec® Alpha Direct fabric, known for its active insulation and incredible performance.
The unique lofted fiber construction delivers an impressive thermal boost while remaining ridiculously lightweight and highly compressible, packing down easily into your backpack. Unlike traditional liners, Alpha Direct is exceptionally breathable, regulating your temperature so you don't overheat or feel clammy as you sleep. It actively manages moisture, is fast-drying, and feels soft and cozy against your skin. It’s more than just a liner—it protects your sleeping bag from dirt and body oils, extending its loft and lifespan.
On warmer nights, the liner can even function as a standalone ultralight blanket or summer sleeping bag, making it a truly versatile piece of gear for any trip.
Inspired, designed, and crafted with pride in Crested Butte, Colorado.
Drawcord at the top for comfort.
Sewn-in footbox.
The stretchy fabric and roomy cut provide freedom of movement.
Polartec® Alpha Direct 60, 90 or 120 (100% polyester)
or
Polartec® Alpha Direct 150 with Wool (63% polyester/33% wool/4% nylon) LIMITED EDITION
Short size - 29"x66"/74x168 cm and fits someone up to 5' 4"/163 cm.
Regular size - 29"x72"/74x183 cm and fits someone up to 5' 10"/178.
Long size - 29"x78"/74x198 cm and fits someone taller than 5' 10"/178 cm.
The foot is 21"/53 cm wide for all sizes.
Alpha Direct 60: 65 degree comfort rating alone/+6-8 degrees as a liner/7ounce weight - regular size/1.6 liters packed size
Alpha Direct 90: 60 degree comfort rating alone/+5-10 degrees as a liner/7.5 ounce weight - regular size/1.9 liters packed size
Alpha Direct 120: 50 degree comfort rating alone/+10-15 degrees as a liner/11 ounce weight - regular size2.75 liters packed size
Alpha Direct 150: 40-45 degree comfort rating alone/+12-15 degrees as a liner/15 ounce weight - regular size/3 liters packed size
Hand wash cold. Lay flat to dry. Do not machine wash, bleach, iron, or dry clean. Avoid fabric softeners.
Critter Potato Sack: The Ultimate Warmth Boost
Elevate your sleep system with the Critter Potato Sack, the ultralight secret weapon for a warmer, cleaner, and more comfortable night outdoors. This sleeping liner uses the advanced Polartec® Alpha Direct fabric, known for its active insulation and incredible performance.
The unique lofted fiber construction delivers an impressive thermal boost while remaining ridiculously lightweight and highly compressible, packing down easily into your backpack. Unlike traditional liners, Alpha Direct is exceptionally breathable, regulating your temperature so you don't overheat or feel clammy as you sleep. It actively manages moisture, is fast-drying, and feels soft and cozy against your skin. It’s more than just a liner—it protects your sleeping bag from dirt and body oils, extending its loft and lifespan.
On warmer nights, the liner can even function as a standalone ultralight blanket or summer sleeping bag, making it a truly versatile piece of gear for any trip.
Inspired, designed, and crafted with pride in Crested Butte, Colorado.
Drawcord at the top for comfort.
Sewn-in footbox.
The stretchy fabric and roomy cut provide freedom of movement.
Polartec® Alpha Direct 60, 90 or 120 (100% polyester)
or
Polartec® Alpha Direct 150 with Wool (63% polyester/33% wool/4% nylon) LIMITED EDITION
Short size - 29"x66"/74x168 cm and fits someone up to 5' 4"/163 cm.
Regular size - 29"x72"/74x183 cm and fits someone up to 5' 10"/178.
Long size - 29"x78"/74x198 cm and fits someone taller than 5' 10"/178 cm.
The foot is 21"/53 cm wide for all sizes.
Alpha Direct 60: 65 degree comfort rating alone/+6-8 degrees as a liner/7ounce weight - regular size/1.6 liters packed size
Alpha Direct 90: 60 degree comfort rating alone/+5-10 degrees as a liner/7.5 ounce weight - regular size/1.9 liters packed size
Alpha Direct 120: 50 degree comfort rating alone/+10-15 degrees as a liner/11 ounce weight - regular size2.75 liters packed size
Alpha Direct 150: 40-45 degree comfort rating alone/+12-15 degrees as a liner/15 ounce weight - regular size/3 liters packed size
Hand wash cold. Lay flat to dry. Do not machine wash, bleach, iron, or dry clean. Avoid fabric softeners.
