Are the pelican's halves two thin walls with a hollow space between?
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Are the pelican's halves two thin walls with a hollow space between?
[Like these things?](https://th.bing.com/th/id/OIP.6UbaahevF_cGQgLIfg4UGgHaEk?pid=ImgDet&rs=1)
No they're tanks. It's a little goretex seal that releases pressure so it doesn't seal shut when you for example take it on a plane.
No they're tanks. It's a little goretex seal that releases pressure so it doesn't seal shut when you for example take it on a plane.
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