The Sea to Summit Breeze Lightweight Sleeping Bag Liner delivers all-weather comfort with a breathable blend of recycled COOLMAX® EcoMade and biobased Tencel™ Lyocell fibres. The soft stretch knit wicks moisture on warm or humid nights, while the mummy versions add shoulder openings and a drawcord-opening footbox for freedom of movement and adaptable ventilation. It is machine washable, quick drying and treated with biocide-free HeiQ Fresh FFL odour control.
Key Features
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Climate control: COOLMAX EcoMade and Tencel Lyocell wick moisture away from the skin to help keep you dry and comfortable.
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Freedom of movement: Stretch-knit construction adapts to different sleeping-bag shapes and lets you move naturally.
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Versatile mummy design: Short, Regular and Long versions have a drawcord-opening footbox plus shaped shoulder and arm openings for ventilation and mobility.
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Traveller-friendly rectangular design: The Rectangular version includes an integrated pillow sleeve.
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Stays fresher: HeiQ Fresh FFL helps neutralise body odour without biocides.
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Easy care: Durable, machine-washable and quick-drying construction reduces how often your sleeping bag needs washing.
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Lower-impact materials: Made with certified recycled and bluesign® APPROVED materials.
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Best use: Backpacking, cycle touring and paddle touring.
Materials and Technologies
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Fabric: 70% polyester / 30% Tencel Lyocell.
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COOLMAX EcoMade: Channeled fibres made from 100% recycled resources move moisture away from the skin to assist temperature regulation.
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Tencel Lyocell: A soft, biobased fibre that supports moisture management and next-to-skin comfort.
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HeiQ Fresh FFL: Biocide-free odour control based on a bio-based amino sugar polymer.
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Colour: Cendre Blue.
Technical Specifications
| Size |
Product Weight |
Dimensions |
Packed Size |
Fits User Height |
| Short |
265 g |
190 × 80 cm |
18 × 10 × 10 cm |
Up to 170 cm |
| Regular |
275 g |
205 × 80 cm |
18 × 10 × 10 cm |
Up to 185 cm |
| Long |
290 g |
216 × 80 cm |
18 × 10 × 10 cm |
Up to 198 cm |
| Rectangular with Pillow Sleeve |
330 g |
225 × 80 cm |
18 × 11 × 11 cm |
Up to 198 cm |
Care and Use
- Machine wash with standard laundry detergent.
- Do not use fabric softener, which can reduce moisture-wicking performance.
- Air dry where possible, or machine dry on a cool/low setting without dryer sheets.
- COOLMAX does not actively lower body temperature; it helps reduce clamminess by moving moisture away from the skin.
- The knitted fabric traps a small amount of insulating air and can add modest warmth to a sleep system.
Sea to Summit Guarantee: Covered by Sea to Summit’s lifetime guarantee against defects in materials or workmanship.
