Exodus Carry
FlexFrame Insert
FlexFrame Insert
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FlexFrame Insert: Premium Replacement Frame Sheets for Tom Bihn Backpacks and More
This frame sheet is designed to fit a range of popular backpacks, including Tom Bihn Synapse 19 and Synapse 25, as well as other backpacks with similar internal dimensions. It provides firm structure and support, offering a perfect replacement for the discontinued OEM version.
Transform your favorite backpack with the FlexFrame Insert — the ultimate solution for adding structure and support to Tom Bihn Synapse backpacks and many other similarly sized bags. Available in two sizes:
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Small: Perfect for Tom Bihn Synapse 19 and comparable bags
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Medium: Ideal for Tom Bihn Synapse 25 and other bags with similar panel sizes
If you’re looking for a replacement Tom Bihn frame sheet, the FlexFrame Insert offers a durable and upgraded alternative. But it’s also compatible with a wide variety of backpacks, ensuring versatility across brands.
Enhanced Design Features:
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Optimized dimensions – slightly larger than the original Tom Bihn frame sheets for a better fit and performance
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Reinforced rubber binding on the bottom edge for secure, slip-resistant placement
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Bonus replacement wings included for extra durability and long-lasting support
✔ Compatibility
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Small size (41.5cm): Fits Tom Bihn Synapse 19 and similarly sized backpacks
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Medium size (49cm): Fits Tom Bihn Synapse 25 and other backpacks with comparable panel dimensions
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Also fits a variety of backpacks with similar internal panel dimensions
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Very fast shipping! Made a tremendous difference in how my S19 felt when loaded out. Just ordered the medium size for my S25 :)
Thank you!
I've a Synapse 19 and 25 and I wanted to get my hands on the original TB framesheets but by the time I had my bags they'd long stopped making them. So finding these FlexFrame sheets was a game changer. My carry comfort has increased considerably. The sheets are just great, well made and the customer service from Ari is second to none. Its a 10/10 product.
I carry a Synapse 19 daily. The small framesheet makes it much more comfortable to wear, and also allows it to be packed more fully without bowing out. I prefer the combination of this framesheet with the Synapse 19 over the Synik 22, because the latter is heavier, has a laptop compartment that I don't usually need, and has a zipper that is harder to operate. So I was very pleased to find this product.