Therm-a-Rest Parsec Sleeping Bag

The Parsec 0 is rated for 0°F (-18°C). It is designed specifically for cold-weather excursions where maintaining core warmth is critical.

The 900-fill hydrophobic down is treated to resist moisture, meaning it absorbs less water and dries faster than untreated down. While it is highly effective, it is still down, so you should avoid soaking it to ensure it maintains its loft and insulating power.

Yes, the Parsec 0 is designed for versatility. It features a system that allows you to integrate it with quilts or blankets, making it easy to layer up or down depending on the specific alpine conditions you encounter.

The Toe-asis is an ergonomic foot pocket at the bottom of the bag designed to trap heat around your feet. It is highly effective for warming up cold toes quickly, which is a common pain point when sleeping in freezing temperatures.

The bag uses a YKK anti-snag zipper specifically engineered to prevent the fabric from catching. It is smooth and reliable, which is essential when you need to get in or out of your bag quickly in the dark.

This model is designed for users up to 72 inches (6 feet) tall. If you are taller than this, you may find the fit restrictive, particularly in the foot box area.