Sea to Summit Ultra-Sil Compression Sack 35L

Reviews

• Alexia h.

  Rated 5 out of 5

  Practical bag

  09/20/26

  I use it for my jazz duo sleeping bag because the original bag was too big to transport for car camping. It’s practical but not easy to fit. You need patience.

• Kajen E.

  Rated 4 out of 5

  Does the job, but doesn't compress so neatly

  05/01/26

  It fits a lot, but expelling air can be hard and compressing a large bag doesn't happen easy. Can be big for a backpack.

• Marianne G.

  Rated 5 out of 5

  Tout simplement parfaits !

  12/24/25

  J’ai acheté plusieurs de ces sacs de compression en vue de mon expédition au Népal. Ils sont très légers, et le mécanisme de fermeture est vraiment pratique. Je recommande !

• Brandon J.

  Rated 4 out of 5

  Solid if you don't need waterproof

  05/28/25

  Love the sturdy straps and the event base, really helps with proper compression if you're patient. Downsides are a delicate material and a top closure that's going to let water in easily, so you need to put this bag into a dry bag. I prefer the combined dry compression sacks so I returned this but it has no fundamental issues.

• Robert R.

  Rated 5 out of 5

  Ultra Sil compression sac

  08/07/23

  Using on my adventure bike, need to compress multiple items to tour for a week, tent, sleeping bag, clothes etc this sac is durable and doesn’t break when you pull the straps.

• Alexandre B.

  Rated 5 out of 5

  pratique

  06/14/23

  sac de grande taille facile a utiliser et se compresse vraiment bien. semble tres resistant

• James B.

  Rated 5 out of 5

  Sea to Summit Ultra-Sil Compression Sac

  05/18/23

  A big enough compression sac for those big lofty 4 season down sleeping bags so they fit snugly into your pack. Work much better that the factory supplied stuff sack that come with your bag that never are compressors.Highly recommend just don’t long term store your sleeping bag in it

• Caroline D.

  Rated 5 out of 5

  J’aime bien

  03/17/23

  J’ai reçu mon sac de compression tout récemment. La grandeur est parfaite si vous l’utilisez pour partir en voyage backpack.