Sea to Summit Reactor Lightweight Sleeping Bag Liner - Pewter (Size S)

The Sea to Summit Reactor Lightweight Sleeping Bag Liner is designed to add up to 8°C (15°F) of warmth to your existing sleeping bag, making it an essential accessory for backpacking, camping, and travel. Made from Thermolite® EcoMade fabric with 50% recycled content, this liner is lightweight, breathable, and quick-drying. The mummy shape and differential cut provide efficient insulation, while the drawcord hood helps retain heat. Includes an Ultra-Sil stuff sack for compact storage.

Advantages

Boosts sleeping bag warmth by up to 8°C without adding bulk. Eco-friendly Thermolite® EcoMade fabric with high breathability and moisture wicking. Compact and lightweight, perfect for backpacking and travel. Machine washable for easy care.

Suitable for

• Backpacking and camping trips where extra warmth is needed
• Travelers seeking a hygienic liner for hostel or hotel beds
• Extending the temperature range of a summer sleeping bag for shoulder-season use

Key specifications

• Material: Thermolite® EcoMade (50% recycled content)
• Fabric Weight: 80 g/m²
• Warmth Added: Up to 8°C (15°F)
• Shape: Mummy
• Colour: Pewter
• Unpacked Length: 210 cm
• Unpacked Width (Shoulder): 90 cm
• Packed Dimensions: 11 x 13 cm (Diameter x Length)
• Features: Drawcord hood, differential cut
• Care: Machine washable, quick-drying
• Stuff Sack: Included (Ultra-Sil)
• Primary Use: Backpacking, Camping, Travel

Recommendations

For best results, use the Reactor Lightweight liner inside a sleeping bag that fits comfortably. The liner adds warmth and also protects your sleeping bag from dirt and oils, extending its life. Ideal for minimalist backpackers who need versatile temperature management.