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Integrated tent vestibule footprint

This DIY concept is a simple cutting and sewing project to extend the functionality of a tent.  A vestibule footprint can block mud and debris from entering the tent and also provides a larger barrier for moisture migrating from the ground and condensing on the inside of the tent fly.  Any piece of coated fabric will work.  In this example a piece of coated ripstop nylon was used.  The total weight addition is 30 grams.

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Completed vestibule footprint set up on a recent bikepacking trip. 

Design considerations: a. Size the vestibule footprint smaller than the fly to prevent water from pooling on the footprint. b. Fold and sew edges to minimize water and debris accumulations. c. Add a length of elastic cord to hold the footprint in tension.

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8. Breaking camp after a stormy night. Everything stayed dry under the tent fly
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7. Completed tent and vestibule footprint sewn together
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4. Inside corner and edge folding detail prior to sewing onto tent footprint
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2. Preparing to check the drip-line with the fly installed
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3. Laying out the fabric
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1. Original MSR universal footprint
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6. Five mm webbing sewn into corner and a length of elastic cord attached to keep footprint in tension
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5. Detail of the vestibule footprint sewn under the tent footprint to an edge to repel water and debris from migrating between tent footprint and body. The perimeter edge is folded under to provide a smooth top edge.