Sea to Summit Silk Blend Sleeping Bag Liner – Rectangular with Pillow Sleeve

Thermal comfort where it matters most

The Sea to Summit Silk Blend Sleeping Bag Liner is designed to be the climate core of your sleep system. Blending 72% Thermolite Pro yarns with infrared technology and 28% silk, it delivers a soft, inviting surface that elevates your sleeping environment without adding bulk. This liner feels wonderfully gentle against the skin, creating a refined layer of warmth that many campers appreciate after a full day outdoors.

On cooler nights, the combination of hollow-core Thermolite Pro fibers and infrared-absorbing pigments works to trap warmth around you while maintaining breathability. The result can be a more comfortable night without overheating, helping you wake rested and ready for the day ahead.

Key technical advantages

• Hollow-core Thermolite Pro fibers create a warmth-trapping layer with infrared technology for added coziness.
• Infrared absorbing ceramic pigments help reflect your body's warmth back toward you.
• HeiQ odor control keeps the liner fresher longer after extended trips.
• Comfort Stretch Panels along the seams reduce pinching points and improve overall sleep surface.

Temperature regulation and compatibility

Shoulder openings and a drawcord footbox offer flexible temperature control that pairs seamlessly with Sea to Summit sleeping bags’ Free-Flow zippers. This harmony helps you regulate warmth as conditions change, without compromising ease of use.

Real-world use

Whether you’re camping beneath open skies, staying in a shared hostel, or trekking through variable climates, this liner adds a touch of luxury while supporting practical warmth where you feel it most. The Silk Blend feel remains soft even after hours of movement, and the silk component adds a premium touch that matters after a long day of activity.

• Lifetime guarantee from Sea to Summit provides long-term confidence in wearability and comfort.
• Lightweight and compact for straightforward packing alongside your sleeping bag.

Care is straightforward: gentle washing and air drying help preserve softness and fit. Designed to work in concert with Sea to Summit’s free-flow zipper systems and footbox design, this liner complements a cohesive sleep system you can rely on season after season.