When comparing Sea to Summit Ultra-Sil Day Pack (20-Liter) vs ChicoBag Reusable Travel Pack (15L), the Slant community recommends Sea to Summit Ultra-Sil Day Pack (20-Liter) for most people. In the question“What are the best packable backpacks around 15-20L?” Sea to Summit Ultra-Sil Day Pack (20-Liter) is ranked 1st while ChicoBag Reusable Travel Pack (15L) is ranked 4th. The most important reason people chose Sea to Summit Ultra-Sil Day Pack (20-Liter) is:
Packs down small enough that it can easily fit in your pockets.
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Pros
Pro Packs very small
Packs down small enough that it can easily fit in your pockets.
Pro Extremely lightweight
At only 2.4oz, it's one of the lightest packable backpacks around.
Pro Doesn't dig into your shoulders
The bag includes a sternum strap that helps relieve some of the stress on your shoulders.
Pro Multiple compartments
The bag is hydration compatible, has an exterior zipper pocket and two side pockets for bottles.
Pro Environmentally friendly
Made from 100% recycled material.
Cons
Con Shoulder straps are uncomfortable
The shoulder straps have absolutely no padding, so it doesn't take much weight in the pack for them to start digging into your shoulders.
Con Only one compartment
In order to keep the pack so light weight, there is only one compartment.
Con Not durable
The stitching is fairly weak and rips easily.