Thank you for viewing. This is an Arc'teryx rain cover for 15-30L backpacks. This item is currently unavailable. I obtained a waterproof bag immediately after purchasing this, so it is a new, unopened item. Description: This backpack cover uses tear-resistant ripstop polyester material, combining durability and waterproofness. It's tough yet lightweight, making it easy to carry. The S size fits backpacks up to approximately 15-30L, making it suitable for day hikes and commuting backpacks. The seams are sealed, ensuring that the contents of your backpack are well-protected even in heavy rain. The reflective logo is also a key feature, providing high visibility at night. ⚠️ Important Notes (Please read before bidding) * We kindly request that you complete the payment process within 24 hours of winning the bid. * Due to concerns about product substitution, we cannot accept returns after a successful bid. We appreciate your understanding. * We cannot accept cancellations after a bid has been placed, so please consider carefully before participating. * Please note that shipping may be delayed to the weekend due to business trips, etc. If you need the item urgently, please consider this carefully before bidding.