10 Best Flexible Filament 2025 in the United States

The OVERTURE TPU High Speed 95A filament is designed for flexible 3D printing with a Shore hardness of 95A, making it fairly firm but still flexible enough for many uses where durability and some softness are needed. One of its main strengths is the ability to print up to five times faster than typical TPU filaments, which is great if you want quicker results without sacrificing quality. It also offers excellent layer adhesion, meaning your printed objects will stick together well between layers, resulting in smooth and strong prints.

The filament is made with a clog-free formula, reducing the chances of print jams, and comes vacuum-sealed with thorough drying to prevent moisture issues, though you should keep it sealed with desiccants after opening to maintain performance. It fits most FDM printers with a standard 1.75mm diameter and has good dimensional accuracy (+/- 0.02 mm), ensuring consistent extrusion. The product is versatile, available in multiple colors, and backed by a lifetime guarantee, which adds peace of mind.

The 95A Shore hardness means it is not as soft as lower Shore TPU filaments, so if you need very stretchy or rubbery prints, a softer option might be better. Additionally, the filament requires careful storage to avoid moisture problems, which can make handling more challenging for beginners. This filament is well suited for users seeking a balance between speed, durability, and moderate flexibility in their flexible filament projects.

The OVERTURE TPU Filament stands out in the flexible filament category, primarily due to its Shore hardness of 95A, which delivers a harmonious blend of softness and durability. This makes it an excellent choice for various applications, like robotics and fashion, where flexibility is key. Users will appreciate the filament's excellent layer adhesion, ensuring smooth prints without the common issues of warping or layer separation. The product's clog-free and bubble-free design also promises a hassle-free printing experience, which is especially beneficial for those new to 3D printing.

Another advantage is its compatibility with a wide range of 3D printers, making it accessible for both hobbyists and professionals. Additionally, the variety of color options allows for creative freedom in your projects.

Though not the cheapest option on the market, the quality of OVERTURE TPU is backed by a lifetime guarantee, offering peace of mind to users. This filament is a strong contender for anyone looking for reliable flexible printing materials, provided they are willing to manage its storage and printing requirements.

The Siraya Tech Flex TPU Filament is a versatile and high-quality option for those needing flexible and durable prints. With a Shore hardness of 85A, it offers excellent flexibility and toughness, making it ideal for applications like custom footwear and protective gear. Its tensile strength and elongation at break ensure that the prints can withstand significant stress and stretching, making it suitable for various industrial and creative projects.

The filament is designed for high-flow and high-speed printing, which can save time while maintaining quality, though it is best used with a direct drive extruder for optimal performance. The ISO 10993 testing adds a layer of reassurance regarding its biocompatibility for external wearable applications. One of the standout features is its packaging in moisture-resistant aluminum bags, which help maintain the filament's quality over time. This makes it a reliable choice for both beginners and experts who may not use the filament immediately after purchase.

However, users should be aware that achieving optimal bed adhesion and managing print temperature might require some adjustments. The filament is compatible with most 3D printers, adding to its versatility.