【Amazing Compression Bags That Reduce Luggage Volume by 1/4!】 By using the "Ashiukurun" compression bags, you can compress bulky items like knitwear and jackets to 1/2 to 1/4 of their original size! This saves space in your carry-on case, making your travels more comfortable. Ashiukurun bags use a two-layer structure of polyethylene and nylon, making them 1.5 times thicker than conventional products, and thus more resistant to tearing, allowing for repeated use. They achieve 3 to 5 times the strength of conventional compression bags! You can use them with confidence, even with frequent use. They are the perfect item for numerous trips, school trips, and business trips. 【3x Improved Odor Resistance】 Ashiukurun bags were tested by a domestic inspection organization, where ammonia gas was placed in a sealed bag, and the odor leakage after 24 hours was measured. The results showed that the odor was suppressed 13 times more than with general bags. Compared to conventional compression bags, the odor resistance is about 3 times better, preventing unpleasant odors from filling your carry-on case, giving you peace of mind. 【Improved Slider Zipper】 The slider zipper is essential for vacuum compression. Ashiukurun doesn't compromise on the slider zipper either! Unlike the thin and cheap sliders often found in inexpensive compression bags, we have focused on a sturdy slider shape that fits comfortably in your hand and is easy to seal with minimal force. Furthermore, the double zipper on the bag ensures high sealing performance, allowing anyone to easily and securely close the bag. 【Passed Formaldehyde Inspection】 Formaldehyde is dangerous! Formaldehyde irritates human mucous membranes and is a harmful substance that can cause allergic reactions such as eye irritation, tearing, runny nose, and inflammation. Ashiukurun bags have been tested by a domestic inspection organization and have passed the standards. This allows even those with sensitive skin and young children to use them with peace of mind. 【Manufactured in a Proven, Excellent Factory】 Ashiukurun has been able to contract with one carefully selected factory from over 10 factories specializing in bag production. The contracted factory has obtained ISO14001 certification and has a track record of shipping 20 million units annually. 【Sizes/Materials】 M size: 32cm x 39cm L size: 35cm x 50cm [Bag] Polyethylene, Nylon [Slider] Polypropylene [Slider Zipper] Polyethylene Shipped in simple packaging.