Developed in collaboration with professional this inner sleeping bag lighter than conventional sleeping features an inner sheet and is made with

[Supervised by professional mountain climber Akira Hashiya] This long-awaited mountain climbing inner sleeping bag was fully supervised by Akira Hashiya, a Certified Mountaineering Guide II of the Japan Mountain Guides Association. In recent years, the use of inner sleeping bags has become a requirement even in mountain huts, making it a must-have for overnight stays in mountain huts. The L-shaped zipper allows for full opening all the way to the feet, ensuring breathability. Made with quick-drying polyester material, it's perfect for all seasons! We promise you a comfortable and satisfying sleep for your upcoming outdoor adventures. [What is an inner sleeping bag?] It is a sleeping bag sheet that is placed inside a sleeping bag. It has the texture of a thin bed sheet and is very comfortable against the skin. It also prevents the sleeping bag from getting dirty and helps prevent night sweats. In the summer, it can even be used as a sleeping bag. Its envelope-shaped design allows for more room inside than a mummy-style sleeping bag. [Ultra-lightweight at 340 grams] "Since I'm carrying everything on my back, every gram of weight is better!" This is surprisingly important for mountain climbers. The storage bag is also water-repellent to protect your precious inner sleeping bag from sudden downpours. [Very useful] Perfect for all outdoor activities, including mountain climbing, camping, hut camping, car camping, tent camping, and glamping. It can also be used as a blanket when staying in a hotel, working the night shift, or traveling. It's also great as emergency bedding in the event of a disaster. It's fully washable, so you can keep it clean whenever you take it with you. [Reliable After-Sales Support] ◎ Bunny's Camp is a Japanese brand that provides thorough after-sales support even after your purchase! Please feel free to contact us with any questions. We also offer our unique 120-day warranty. ◎ At our store, dedicated staff carefully inspect each and every item, down to the zippers and stitching details. We only deliver products that meet our standards. ◎ Product Specifications: ◆ Size: Approx. 205cm x 75cm ◆ Storage Size: Approx. 20cm x 9cm ◆ Fully Unfolded: Approx. 205cm x 150cm ◆ Weight: Approx. 340g ◆ Colors: 3 colors (black, gray, navy) [Supervised by professional mountain climber Akira Hashiya] This long-awaited mountain climbing inner sleeping bag, fully supervised by Akira Hashiya, a Certified Mountaineering Guide II of the Japan Mountain Guides Association, is finally here. In recent years, the use of inner sleeping bags has become a necessity for mountain huts, making them a must-have for overnight stays. The L-shaped zipper allows for full access to the feet, ensuring breathability. Made with quick-drying polyester material, it's perfect for all seasons! We promise you a comfortable and satisfying sleep for your upcoming outdoor adventures. [What is an inner sleeping bag?] This is a sleeping bag sheet that you insert inside your sleeping bag. Its texture is similar to a thin bed sheet, offering a smooth, comfortable feel. It also helps prevent stains and night sweats. In the summer, it can even be used as a sleeping bag replacement. Its envelope-style design allows for more room inside than a mummy-style sleeping bag. [Ultra-lightweight at 340 grams] "Since I'm carrying everything on my back, every gram of weight is better!" This is surprisingly important for mountain climbers. It also comes with a water-repellent storage bag to protect your precious inner sleeping bag from sudden rain. [Very useful] For all outdoor activities, including mountain climbing, camping, staying in a mountain hut, sleeping in a car, tent, glamping, etc. It can be used as a simple sheet when staying in a hotel, or as a sleeping bag at night. It can be used as a blanket for work, unexpected overnight stays, or travel. It's also great as emergency bedding in the event of a disaster. It's fully washable, so it'll always stay clean when you take it with you. [Reliable After-Sales Support] ◎ Bunny's Camp, a Japanese brand, offers thorough after-sales support even after your purchase! Please feel free to contact us with any questions. You can also take advantage of our unique 120-day warranty. ◎ Our dedicated staff carefully inspects each item, down to the zippers and stitching details. We only deliver products that meet our standards. ◎ Product Specifications: ◆ Size: Approx. 205cm x 75cm ◆ Storage Size: Approx. 20cm x 9cm ◆ Fully Unfolded: Approx. 205cm x 150cm ◆ Weight: Approx. 340g ◆ Colors: 3 colors (black, gray, navy)