12L Greenhermit drysack (similar to Sea to Summit Ultra-Sil Nano drysack)

$14 USD 12L Greenhermit drysack $22 USD S2S 13L Nano drysack

The 12L Greenhermit drysack is available for $13.59 USD delivered on Aliexpress. Similar to the ~$22 USD 13L Sea to Summit Ultra-Sil Nano drysack 30D Sil-Nylon 5 x 15 x 50cm, 40g Discounts (USD): $2 off $50 at Outdoor Leisure Travel Station

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These Greenhermit drysacks are made from lightweight and tough 30D Sil-Nylon "Cordura" fabric. You close them by folding a stiff band at the top over itself a few times and then clipping the ends into each other. This makes the bag reasonably airtight and watertight (except for full immersion). The clipped closure strap forms a loop that serves as a carry handle or can be clipped to a pack. A drysack has many uses: Protects backpack contents from rain/water (e.g. electronics, food, etc) Prevents bugs getting into your food Isolates items that cause a mess when spilled (e.g. honey/oil/toothpaste) Separates goods. You might have a clothing bag, sleeping gear bag, dirty clothes/garbage bag, etc  Somewhere to put items when they are outside your pack   Pros 30D fabric is strong and being relatively light Available in three colours (blue, orange, yellow) Other sizes also available Cons Sea to Summit Nano is 15D Sil-Nylon and lighter at 28g Sea to Summit Nano is seam sealed - unclear if the Greenhermit bag is

Stiffening band at top Clipped shut Close-up of connectors Close-up of fabric

Further Resources

Official product page
Amazon.com product page (affiliate link)

Sea to Summit Nano Dry Sack

Youtube
Sea to Summit Ultra-Sil Nano Dry Sack