The Fold Drybag BS ("bright sight") are usually $22-$32 each, and Exped rarely goes on special. They have been replaced by the "Exped Versa" line which seem to be identical but with different colours, so the old colours are selling out cheaper.
Also available at Trek & Travel with a few more of the sizes (each size only comes in one colour, so initially it looks like many combinations are out of stock, but you just have to pick the right colour that goes with the size you want).
The ultralight version is also onsale as well as the stuff sacks.
- Fold Drybag BS: 70D / thicker - same as the sea-to-summit 'lightweight' dry bags
- Fold Drybag UL: 15D / thinner - like the sea-to-summit 'ultrasil' - I don't like these, I find they puncture too easily on the corners of mylar packets (like most multiday hiking food)
- Cord Drybag: These are not drybags! They are stuff sacks. Ridiculously light ones. For those who want the organisation without the waterproof-ness. I haven't tried these, but I think they might be puncture prone due to how thin they are.
S2S vs Exped dry bags:
- S2S is often on special, Exped is not (S2S drybags are cheap at anaconda at the moment)
- S2S drybags used to have a circular cross-section while Exped have curved-rectangle, which is much more packable in the hiking pack. The new S2S drybags seem to have updated their design to match now.
- Exped dry bags (non-UL) have a grab handle across the bottom (on the 5/8L at least) to pull the bag out of your hiking pack easier - much handier than I thought it would be
- S2S dry bags (non-UL) have a D-ring on the buckle to clip onto other things which could be convenient. Exped do not.
IMO 5L/8L are the most useful for multiday hikes. 5L fits summer sleeping clothes/socks/undies, 8L fits winter sleeping clothes/socks/undies+puffy jacket, 2x8L will fit 1 week's worth of food for me (I home-dehydrate my multiday food and package in ziplock bags which often get micropunctures depending on the food shape, so want a drybag to hold it all). Or 1x13L for food for the 5-day mark. YMMV.
| Seller | Item | size | price | normal price |
|---|---|---|---|---|
| Mountain Equipment | Fold Drybag | 3L | 11.48 | 22.95 |
| 5L | 12.48 | 24.95 | ||
| 8L | 12.98 | 25.95 | ||
| 22L | 15.98 | 31.95 | ||
| Mountain Equipment | Fold Drybag UL | 1L | 10.98 | 21.95 |
| 3L | 12.48 | 24.95 | ||
| 13L | 17.48 | 34.95 | ||
| 1L | 10.98 | 21.95 | ||
| Mountain Equipment | Cord Drybag UL | 1.5L | 11.98 | 23.95 |
| 2.7L | 12.48 | 24.95 | ||
| 5L | 13.98 | 27.95 | ||
| 8L | 14.98 | 29.95 | ||
| 13L | 17.48 | 34.95 | ||
| 19L | 19.98 | 39.95 | ||
| 31L | 24.98 | 49.95 | ||
| Trek & Travel | Fold drybag | 1L | 10.98 | 21.95 |
| 3L | 11.48 | 22.95 | ||
| 5L | 12.48 | 24.95 | ||
| 8L | 12.98 | 25.95 | ||
| 13L | 13.98 | 27.95 | ||
| 22L | 15.98 | 31.95 | ||
| 40L | 19.48 | 38.95 | ||
| Trek & Travel | Fold drybag UL | 1L | 10.98 | 21.95 |
| 3L | 12.48 | 24.95 | ||
| 5L | 13.98 | 27.95 | ||
| 8L | 14.48 | 28.95 | ||
| 13L | 17.48 | 34.95 | ||
| 22L | 19.48 | 38.95 | ||
| 40L | 25.98 | 51.95 | ||
| Trek & Travel | Cord drybag UL | 1.5L | 11.98 | 23.95 |
| 2.7L | 12.48 | 24.95 | ||
| 5L | 13.98 | 27.95 | ||
| 8L | 14.98 | 29.95 | ||
| 13L | 17.48 | 34.95 | ||
| 19L | 19.98 | 39.95 | ||
| 31L | 24.98 | 49.95 |



Thanks for the detailed comparison. Don't hike so not buying but appreciate the effort