This one item increases sleeping bag warmth by +8°C! An essential classic liner for a good night's sleep while hiking and camping. This is the best-selling inner sheet from SEA TO SUMMIT, the "Thermolite Reactor Standard." This is a domestic genuine product. ■ Product Details Condition: New, unused Weight: Approx. 248g (ultra-lightweight and compact) Size: Total length 210cm x width 90cm Packed size: Diameter 11 x 15 cm Material: Lightest 80g/㎡ Thermolite Temperature increase: 8°C ■ Shipping (Important) To offer the lowest possible price, we will remove the item from its plastic packaging, refold it, and ship it via "Yu-Packet Post." *The packaging and storage bag will be included flat. If you wish to have it shipped in its original condition, we can change the shipping method to "Takkyubin" for an additional ¥500. Please let us know in the comments before purchasing. #SEATOSUMMIT #シートゥサミット #サーモライトリアクター #インナーシーツ #シュラフカバー #登山 #キャンプ #ウルトラライト #ULキャンプ #車中泊