Boost your sleep system’s warmth with the Reactor Fleeceweight.
Thermolite® hollow-core fibres and grid fleece trap and reflect body heat, adding up to 8°C|14°F with minimal weight. The stretch fleece and arm openings allow freedom of movement, while snap attachments fit Sea to Summit sleeping bags for easy access. Easy to clean and quick-drying, it features HeiQ Fresh odour control. Using a liner reduces sleeping bag washes, helping preserve loft and extend lifespan.
Boosts Sleep System Warmth – Reactor Fleeceweight uses Thermolite® hollow-core fibres and grid fleece to trap warmth with minimal added weight
Freedom to Move – Stretch-knit and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep
Technical Shape and Hood – Ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk
Stay Fresh Longer – HeiQ Fresh odour control technology keeps the liner fresh after extended use
Easy to Keep Clean – Machine washable construction simplifies care and reduces wear on your sleeping bag over time
Can be used on its own as a lightweight sleeping bag in warm-weather conditions
