Large Waterproof Sports Backpack Roll Top Dry Bag

Deep Sky Blue
$49.99 USD

MIER Large Waterproof Backpack Roll Top Dry Bag

Whether your adventure takes you to the slot canyons of Utah or the winding rivers of Montana, the MIER dry bag (you can also call it swim bag) keeps your gear safe and dry. Constructed with ripstop 500D tarpaulin, this dry backpack is built to provide many years of wear and tear while the heavy duty buckle system seals water out. An extra outer water-resistant zipper pocket to store small essentials for quick access, two side lash loops provide attachment points. The most importantly is MIER use ergonomic mechanics system to keep your back comfortable, plus sternum straps & waist belt to distribute the load and reduce the pressure on the back, making it easier and more comfortable to carry even for a long distance. Easy to wipe clean with damp cloth or water without any problems due to its smooth and waterproof surface.


  • Stronger Seal Constructed ----- Made from ripstop 500D tarpaulin with fully welded seams result in a stronger, more durable waterproof construction as opposed to traditional sewn-and-taped seams. MIER dry bag designed for years usage, tear, rip and puncture-proof
  • Comfortable Fit for All Bodies ----- Sternum clip & padded back support help relieve pressure on muscles. Thick, cushioned straps adjust for custom comfort. Also equipped with a heavy-duty waist-belt, which relieves added pressure and helps support your load
  • 2 Easy Ways to Close ----- Simply fold the roll-down top at least 3 times, then click the top clip to create an instant handle. OR use the side clips & adjust for a snug, compressed fit – it’s waterproof either way!
  • More Thoughtful Details ----- The clear front pocket makes you know what is in it: flashlight, a knife and other required item for your easy and quickly grab. Integrated silicone handle for you comfort carry. Lash loops provide attachment points or secure dry bag to a pack or kayak
  • Multiple Colors and Sized Selection ----- 30 liter and 40 liters to meet different occasions. Various bright colors for choosing make it stand out in the crowd and show your personality. Perfect for outdoor activities like swimming, boating, kayaking, sailing, surfing, fishing, rafting, beach activities and so on. A nice gift for families and friends. MIER guarantee 30 days return and money back, 2 years limited warranty and lifetime customer service

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Free Shipping On All Orders, No Minimum Purchase.

Delivery Information understands that getting your items in a timely manner is important to you, so we process your order swiftly. Please note that because we make every effort to ship your product as quickly as possible, once the shipping process begins, we are unable to make any changes to your order.


  • 3 to 7 Business Days to the US from US warehouses
  • 7 to 14 Business Days to the Europe
  • 10 to 15 Business Days to Asia and its neighbor countries


  • 1 to 3 business days to the US

All orders are estimated to ship typically within one to two days after the order is placed. Shipping days exclude weekends and holidays. At this time, we are currently free to ship to limited countries listed on our website, other countries please email in advance. Most of Miersports' products will ship from our factory warehouse. All free shipping products will ship via standard shipping. Orders shipping to APO/FPO addresses will be unavailable. We do not ship to PO Boxes.

Returns Policy

We strive to provide the best customer experience. If for any reason you are not satisfied with the product you purchased from, you may return it within 30 days of delivery for a full refund minus any shipping charges. We just ask that the product is in brand new condition with the original tags still attached for full credit.


If you're unhappy with your purchase, please take the following steps:
Simply fill in the details on the returns form within 30 days of delivery to return your item(s). Please include your Order ID and reason for your return in the form for documentation purposes. Don't know your order number? Sign in to your account to process returns. During the returns period, we will respond with authorization and instructions for returning your item(s). A full refund of the purchase price (minus any shipping charges) will be issued in the form of the original payment for all items confirmed returned in a re-saleable condition. Refunds may take between 5-7 business days to process once an item has been delivered to our warehouse. Typically, refunds show up on your credit/debit card within 2 business days after the refund is issued. If you run into any problems, feel free to contact us here

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