This listing is for one item as shown in the title. [Development Background] "The main backpack for tent camping is shifting from 40L to 35L." In recent years, hiking gear has become lighter and more compact. For tent camping, backpacks in the 35-38L class are becoming the mainstream, replacing the 40L class. However, storage sacks designed for 40L packs, like the traditional Hyperlite Mountain Gear PODS, are currently too large and inconvenient to use inside 35L class backpacks. Therefore, we developed a storage sack optimized for the interior of 35-38L backpacks. By creating a series of sizes and types, we have enabled efficient packing. [Features] ● Self-standing stuff sack It can store items that tend to get messy during tent camping and can be opened and closed quickly. The wide opening ensures easy access to the contents. ● ITW-NEXUS cord lock adopted We use ITW-NEXUS, which allows for one-action operation of the cord lock function and opening/closing. This combines ease of use with reliability. ● Thick DCF for high durability Thick 1.43oz DCF is used to maintain its self-standing shape. ● Can be stacked with Unit Box 35 The bottom is the same size as the separately sold "Unit Box 35". It can be perfectly stacked with the Unit Box 35 series. ● R-processing and sewing + seam tape The four corners are rounded to distribute pressure. Sewing + seam tape reinforces the strength reduction caused by needle holes in the DCF fabric, increasing durability. A characteristic of DCF fabric is a reduction in strength from needle holes. Seam tape can compensate for this, significantly increasing durability. Dyneema tape is very expensive and requires considerable effort, but we consider it an essential specification for items where the seams are subjected to compression and force. [STACK35 Series] Stackability is pursued for 35-38L backpacks. The bottom is unified, so stacking S/M/L/XL sizes fits neatly, and it can also be combined with half-size or roll-top stuff sacks. This is a series for UL-oriented hikers. [Specifications] Size: Approximately 26 x 15 x 23 cm Weight: Approximately 21g Material: DCF 1.43oz [Notes] - Decorative items other than the product title are not included. - Price negotiation is not possible. - Ships in simple, compact packaging.