Elevate your cold-weather outdoor adventures with the THERMOLITE® Reactor sleeping bag liner by Sea to Summit. This exceptional liner is not only our best-seller but also our lightest thermal sleeping bag liner. It's the perfect choice for anyone seeking added warmth during their nights in the great outdoors. The innovative hollow core fibers within the liner excel at trapping heat, delivering extraordinary insulating properties that keep you cozy when the temperatures drop.

Features:

• Enhanced Warmth: The Reactor liner significantly increases the warmth of your sleeping bag, offering an additional 14°F (8°C) of insulation. When chilly nights are in the forecast, this liner is your reliable choice for maintaining a comfortable sleep temperature.
• Stretchy Comfort: Crafted from stretchy THERMOLITE® fabric, this liner provides an incredibly comfortable sleep experience. The fabric adapts to your body, ensuring a snug fit that maximizes warmth.
• Lightweight and Packable: Compared to traditional fleece liners, the Reactor liner is both lighter in weight and more packable, making it an ideal choice for gram-conscious adventurers. It won't weigh you down, and it compresses neatly for easy storage in your backpack.
• Technical Mummy Shape: Designed in a technical mummy shape, this liner optimizes heat retention. The drawstring hood and foot box ensure that heat remains trapped, while a snug fit minimizes the risk of cold spots.
• Easy Maintenance: The Reactor liner is low-maintenance and easy to clean. You can machine wash it without requiring special detergents. Just remember to avoid fabric softeners and dryer sheets to maintain its performance.
• Hygiene and Cleanliness: In addition to enhancing warmth, the liner also acts as a protective barrier for your sleeping bag, helping keep it clean and extending its lifespan.
• Compact and Portable: When not in use, the Reactor liner neatly packs into its own Ultra-Sil stuff sack, requiring just 1.0 liter of space in your backpack.

Specifications:

• Mummy Shape
• Compressed Volume: 1.0 Liter
• Dimensions: 208 cm
• Packed Size: 15 x 11 cm
• Weight: 248 grams

The THERMOLITE® Reactor sleeping bag liner is your go-to choice for enhanced warmth during cold-weather camping and backpacking trips. As Sea to Summit's top-selling liner, it strikes a perfect balance between weight, warmth, and comfort, making it a must-have addition to your outdoor gear collection.