The large and medium sizes allow for shoulder strap replacement. ・Instant purchase is welcome. ・Free shipping ○ Please understand that items are stored at home and will be shipped with simple packaging before purchasing (*´ω`*) ○ Please check the actual photos for the condition of the product! ・In order to offer the item at a slightly lower price, we may ship it without the box due to shipping costs. ○ Returns are not accepted except for defective products, so please be sure to check the photos before purchasing. If you have any issues, please contact us [before rating]! Yuyu (Japan Post) to Rakuraku Mercari (Yamato Transport) or vice versa, may be changed.