Patagonia Ascensionist 40L Backpack

We’ve read the reviews across the web for the Patagonia Ascensionist 40L Backpack and summarize the results below:

Universal Ranking

PeakScore: 85 (out of 100)
User Rating: 4.4 stars 
Expert Rating: 4 stars

Number of Ratings Reviewed: 23

Pros & Cons

Reasons to buy:

User Reviews

  • The chest clip is now adjustable for a tight and secure fit.
  • Able to accurately adjust the waist belt to cover your hip bones for comfort and functionality.
  • The main pocket has ample space for climbing gear.
  • Minimalist and lightweight for those who don’t need a lot of bells and whistles.

Expert Reviews

  • Good choice for those who want a quick adventure in the mountains, due to being relatively lightweight and minimalist.
  • Durable and can withstand wear-and-tear.
  • Good for those who want a mobile and heavy-duty pack at a good price point.
  • The opening with one handle allows for quick and easy access when belaying.
  • Transitions well between approaches and climbs for an efficient pack.
  • The hip belt is removable if you want a lighter pack for convenience.

Reasons NOT to buy:

User Reviews

  • Some reports of being uncomfortable due to a lack of support on the back panel.
  • The main lid buckle doesn’t cinch tight and hold for long periods of time, limiting the functionality.
  • When using a hydration pouch, you can feel it due to the lack of a frame in the bag, causing an uncomfortable feeling and limiting long-term comfort.

Expert Reviews

  • Not the lightest option on the market.
  • Less convenient than other packs on the market due to the top-loading design.
  • Doesn’t have the most efficient weight transfer for an extremely efficient carry.
  • Doesn’t carry very comfortably when packed fully.
  • The material can’t stretch or expand to accommodate loads that are oversized.


The Patagonia Ascensionist 40L Backpack is a durable, mobile, and minimalist pack that is well-suited for those who want to quickly transition between approaches and climbs. Despite not being the best for carrying heavy loads, a limited functionality due to the top-loading design, and not having the most efficient weight distribution, this pack could be good for climbers who want a simple and well-priced pack for quick trips into the mountains.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2, 3, 4, 5, 6.