Overview - This is the 25 liter Patagonia Black Hole Pack which is the smaller of the two Black Hole packs (the other is 35L). Like all of Patagonia's Black Hole line, the pack material is durable and water resistant. The pack is just the right size and has smart features making it a versatile day pack.
Pack Material - The fabric is burly and water resistant (1,200-denier polyester with a TPU-film laminate and DWR finish) and has not shown any wear since I've had it (since fall '14). The TPU laminate gives the pack a smooth texture and seems to keep it from getting dirty. Since the pack has a DWR finish, it is water resistant but not fully waterproof, which means it protects the contents of the pack in light rain, but not a heavy downpour.
Sleek and simplistic design - What sets this day pack apart is it has one main compartment with a wide opening making it easy to stuff large/bulky items. I can get a climbing rope in the bag without any trouble.
The interior sleeve is quite large and I was surprised to find out that it could fit my 15" workstation laptop. The sleeve is also positioned above the bottom of the pack so it does not contact the ground when the pack is set on the floor.
Hydration compatible - The pack has one hydration port
Top and front pocket - The top pocket is good for storing small items. The front pocket is great for a book or small tablet and is well concealed, I almost didn't see it when I first looked at the pack
Suspension - As this is a 25L pack, the shoulder straps have just enough padding to be comfortable but too bulky to be overkill. Same goes with the webbing hip belt which is minimal but more than sufficient for the typical loads of a day pack. With that said, having the hip belt and sternum strap help keep the pack in place when hiking/climbing/biking.
There is an organizer panel on the inside of the pack but there is no way to close the pocket. The key clip also on the panel but I would prefer if this panel was in a zippered pocket
This is a personal preference but I wish there was a stretch side pocket for a water bottle
Recommended uses - Climbing, travel and daily use. It also works well as a multi-pitch pack since the hip belt and sternum strap keeps the pack in place while climbing with it.