This Petzl harness shares all the likes of the Sama: comfortable, light and highly breathable. The breathability is handy if you are alpine climbing and want it to dry fast or if you are climbing in hot weather and don't want to sweat. Like all Petzl harnesses, it has the great Petzl self-locking buckle (called DoubleBack buckles) and the best leg loop elastic release we tested.
Petzl has led the industry in providing clear documentation illustrations. They took the next step by printing these illustrations on their harnesses. For example, the belay loop shows a printed illustration showing you how to tie in. Most likely, this will wear out over time. However, it will be there when it is most needed: when a person first buys the harness.
Most of our reviewers prefer no leg buckles for all applications (yes even alpine and mountaineering). So we would choose the Sama over this harness. For those who like buckles on the leg straps, they may be miffed that they must pay $20 more than the Sama to get them (most harness manufacturers charge only another $5-10 for leg buckles).
The Adjama is at the lighter end of the all-around harness market. It excels for mountaineering and all around climbing. You can undo the adjustable leg loops which makes the harness easy to get on over crampons.
Chris Mac says, "I once borrowed one of these from Cedar Wright. Then I just kept forgetting to give it back (sorry Cedar). It became my go-to harness for years. I put a lot of big wall ascents on mine. While it's not exactly comfortable at long hanging belays, I found it a nice trade-off for being reasonably comfortable and light. Today I would choose the Petzl Sama over the Adjama. The Sama is lighter, cleaner and costs $20 less."
At $85 this is not as good a value as the Petzl Sama, which is lighter and costs $20 less. But if you want adjustable leg loops you will like this harness and use it for years.