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I need a skilled craftsman to make a versatile drybag that is waterproof, durable, and lightweight. Key Requirements: - Made from nylon and TPU - Roll-top closure Ideal Skills and Experience: - Experience in bag-making or using similar materials - Knowledge of waterproofing techniques - Familiarity with roll-top closures
Project ID: 40412419
19 proposals
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Active 4 days ago
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19 freelancers are bidding on average $613 USD for this job

Hi, I’m Gökay Zaralı, a multidisciplinary engineer with 13 years of hands-on experience in design, analysis, and production-focused engineering. I help clients turn ideas, concepts, and technical requirements into accurate CAD models, clear manufacturing drawings, and practical engineering solutions. My work covers mechanical design, architectural detailing, structural/FEA and CFD-based analysis when needed, always with a focus on buildability, accuracy, and real-world application. I don’t just create drawings; I aim to deliver a complete technical output that can be reviewed, manufactured, or developed further with confidence. I’d be glad to review your project scope and suggest the most effective way forward. Best regards, Gökay Zaralı
$450 USD in 4 days
6.2
6.2

I will help you design a multi-function drybag with practical features, durable construction, and efficient space utilization. At the end, I will deliver detailed design files suitable for prototyping and manufacturing. Freelancer profile: www.freelancer.com/u/awaisshehaz
$653 USD in 2 days
6.1
6.1

Hello, I have strong experience in product design and prototyping of waterproof gear, including nylon/TPU-based drybags with roll-top closure systems. My focus is on durability, lightweight structure, and real-world usability under harsh conditions. My approach includes selecting appropriate TPU-coated fabrics, optimizing seam construction (heat sealing or RF welding where applicable), and ensuring full waterproof integrity. I also design for stress distribution, folding efficiency, and long-term material resilience through iterative prototyping and testing. Deliverables include detailed 3D/CAD design, construction patterns, material specifications, and a clear manufacturing-ready document for prototyping or production scaling. Can you confirm the target capacity/size and intended use environment (marine, hiking, industrial)? Do you prefer stitched + seam-taped construction or fully welded waterproof construction? Thanks, Asif
$1,000 USD in 6 days
5.5
5.5

Hello, ✅ Do you require seam sealing or RF welding to ensure full waterproof integrity of the nylon/TPU layers? ✅ Should the roll-top closure include reinforced stiffeners and buckle system for repeated load cycles? I can design and produce a durable, lightweight drybag using nylon with TPU lamination, ensuring full waterproof performance. I have experience with material selection, sealing methods, and constructing reliable roll-top systems for outdoor use. My approach ensures strong seams, clean finish, and long-term durability. Let’s discuss your specifications and intended use. Best regards,
$505 USD in 3 days
5.2
5.2

Hi, I reviewed your requirement, and this is less about making a bag and more about getting the material behavior, sealing, and construction right so it actually performs in real conditions. I can design a durable, lightweight drybag using nylon + TPU with proper seam sealing and a reliable roll-top system that maintains waterproof integrity over time. The focus will be on practical construction methods, material selection, and usability, not just form. You’ll get a build-ready design with clear construction details so it can be produced consistently. Once we connect, I can share relevant work and walk you through how I’d approach this. Quick question, do you have a target capacity or use case in mind (e.g. kayaking, travel, heavy-duty use)? Best regards, Muskan
$1,000 USD in 5 days
4.5
4.5

Hey there! I'm Neelam, and while I might not be a craftsman in the traditional sense, I am a seasoned problem-solver and creator. My skills in 3D modelling, industrial design, manufacturing, and product design make me uniquely equipped to take on your multi-function drybag project. Though my work has primarily been in digital marketing and advertising, it has also required a deep understanding of different materials, their properties, and how they can be used to solve problems. My experience is extensive, having worked with over 200 clients globally. I approach each challenge with equal parts creativity and meticulousness, which are imperative for designing something as durable and versatile as your drybag. neelam
$505 USD in 7 days
4.3
4.3

Hi I am global sourcing agent Indonesia based, I bid to your project to assist you making your product with a good reliable maker. Please let me know details of the bags and qty if available. Also the details and love f any smple needed. Let me your terms do you want to deal directly with maker or I will be processed for you. Thank you and looking forward to hearing from you Best regards Erlina
$1,000 USD in 1 day
4.2
4.2

Hi, making a drybag isn’t just stitching nylon, if sealing and construction aren’t right, it fails under real use. I focus on designing production-ready drybags, defining materials, construction methods, and waterproofing details, but not physical manufacturing. You’ll get a detailed, build-ready design with proper TPU bonding approach, roll-top sealing, and specifications ready for a manufacturer to execute. I’ll walk you through similar product design work once we connect, what capacity or size range are you targeting? Let’s design this to perform, Atik Murtaza
$200 USD in 1 day
1.0
1.0

Hi, I am a seasoned craftsman with a passion for creating high-quality, functional gear. With over 6 years of experience in designing and crafting outdoor equipment, I specialize in working with materials like nylon and TPU to create durable and waterproof products. My expertise in bag-making, waterproofing techniques, and roll-top closures make me the ideal candidate for this project. I have obtained certifications in engineering and craftsmanship, ensuring that the drybag I create will meet your specifications and exceed your expectations. I have a few questions about the project and would love to discuss further details. Please feel free to send me a message via chat. Cheer, Dax.M
$580 USD in 5 days
0.0
0.0

Your requirement for a high-performance, multi-functional drybag aligns perfectly with my background in technical soft goods engineering and outdoor gear prototyping. Having previously developed submersible backpacks and IPX7-rated storage solutions, I understand the critical balance between extreme abrasion resistance and the weight-saving requirements of modern trekking equipment. I am ready to translate your vision into a field-ready product that maintains its structural integrity and waterproof rating even under significant hydrostatic pressure and harsh environmental exposure. My approach begins with selecting a high-tenacity 420D or 500D TPU-coated nylon, which offers superior puncture resistance and flexibility compared to traditional PVC while significantly reducing the drybag’s overall footprint. To ensure a 100% waterproof barrier, I will utilize High-Frequency (HF) welding for all primary seams, creating a molecular bond that is far more reliable than adhesive-based or taped-seam alternatives. For the multi-functionality, I propose integrating laser-cut Hypalon attachment points or a modular daisy-chain system that allows for secure lashing without compromising the bag’s waterproof core. The closure will feature a reinforced, non-wicking roll-top interface paired with heavy-duty hardware to ensure a hermetic seal regardless of how many times the bag is cycled. What is your target internal volume in liters, and are there specific gear dimensions or specialized attachment needs, such as shoulder straps or MOLLE compatibility, that we should prioritize? Additionally, do you have a specific weight target or a preferred colorway for the initial prototype phase? I am available to jump on a brief call or chat here to clarify these technical specifications and move straight into the material sourcing and design phase.
$790 USD in 21 days
0.0
0.0

Hi, I am available to take this on and get your versatile drybag made perfectly. The main issue with partially built bags is usually the seam strength or the roll-top closure not aligning for waterproof integrity specifically. Are you planning to use high-frequency welding for the nylon and TPU materials for better durability and do you want the hardware to be lightweight or heavy-duty? I recently made a similar waterproof bag for an outdoor gear firm that needed custom dimensions and used heavy-duty TPU-coated nylon to hook into their production line and built a reliable prototype that validated materials before using the welding method to seal the seams then corrected their pattern structure to ensure the closure actually held up across outdoor conditions. My process stopped their drybag from leaking during testing and made the whole production process way faster for their team. I am eager to discuss the project further. Reach out to initiate a conversation! Best regards, Zain
$10 USD in 7 days
0.0
0.0

Hello, no problem. I have experience designing and developing functional bags using technical materials like nylon and TPU, including waterproof constructions and roll-top closures for reliable sealing. I can create a multi-function drybag that balances durability, lightweight performance, and usability, with proper seam sealing, reinforced stress points, and clean construction. My approach includes selecting appropriate fabric weights, integrating roll-top hardware, and ensuring the bag performs well in real-world wet conditions. I can also provide design refinements or prototypes to optimize the final product before full production. Sincerely, Lorenzo
$750 USD in 2 days
0.0
0.0

Hi! I just saw your project and I think I can help. I'm a 2D and 3D modeler and designer with over 10 years of experience. You can see part of my portfolio on my Freelancer profile.
$505 USD in 7 days
0.0
0.0

Dear Client! I am a professional architect and product design specialist with experience working on durable, functional, and detail-oriented fabrication projects using high-performance materials such as nylon and TPU. I understand the importance of creating a lightweight yet fully waterproof drybag with a secure roll-top closure that performs reliably in demanding outdoor and travel conditions. My background includes material selection, construction detailing, and coordinating practical manufacturing solutions to ensure durability, usability, and clean finishing standards. I am confident I can help develop a versatile and professional-quality drybag that meets your expectations for strength, waterproofing, and long-term performance. Best Regards!
$505 USD in 4 days
0.0
0.0

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