Sea to Summit Silk Blend Sleeping Bag Liner — Mummy, Compact

Designed primarily for comfort, the Sea to Summit Silk Blend Sleeping Bag Liner acts as the climate core of your sleep system, adding warmth and a touch of luxury to your sleeping bag. This liner blends 72% Thermolite Pro yarns with infrared technology, Thermolite EcoMade fibers, and 28% silk to deliver a soft, plush feel that still performs in the backcountry. Comfort Stretch Panels along the seams reduce fabric pull, while shoulder openings and a drawcord footbox let you tweak temperature and fit so you can drift off with a sense of ease. When paired with Sea to Summit sleeping bags, the liner harmonizes with Free-Flow zippers for a smooth, integrated experience. The Sea to Summit Guarantee is offered for the lifetime of this product, underscoring a commitment to durability that appeals to serious travelers.

Warmth, comfort, and fabric technology

• 72% Thermolite Pro yarns with infrared absorbing ceramic pigments create a warmth-trapping layer surrounding you.
• 28% silk provides a soft, skin-friendly touch for a luxurious yet breathable feel.
• Hollow-core Thermolite Pro fibers enhance warmth retention without adding bulk.
• Thermolite EcoMade fibers contribute to durability and lightweight performance for travel-ready layering.

Fit, design, and compatibility

• Comfort Stretch Panels along the seams boost overall sleeping comfort and ease of movement.
• Shoulder openings and a drawcord footbox offer precise temperature regulation and a customizable fit.
• Designed to harmonize with Sea to Summit sleeping bag zippers for a seamless, streamlined setup.

Odor control and longevity

• HeiQ odor control technology helps keep the liner feeling fresh after extended use.
• Sea to Summit Guarantee is offered for the lifetime of the product, reinforcing confidence during rugged trips.

Real-world use and care

• Ideal for camping, backpacking, or travel to tailor your sleep climate on the go.
• Compact and lightweight when packed, making it easy to carry in a backpack or gear bag.

In practice, the Silk Blend Liner provides a softer surface against the skin while contributing warmth when temperatures dip. It’s a practical upgrade for anyone who wants a more comfortable night outdoors without committing to a heavier sleeping bag. The combination of silk luxury and Thermolite warmth offers a versatile option for variable conditions, helping you sleep a little warmer on cool nights while keeping your overall pack weight down.