Have had nothing but early failures with Merrell hiking products.
Probably a bald face hornet, they sting on the fly...
mg
I've been through 2 pairs of their 1st generation Trail Gloves, 2 pairs of their older water sport model (I used them trail running..not anything water)...and about done with this 1st pair of Ascends (which are a slightly padded minimalist shoe)
I'll get another pair of Ascends soon enough...but will modify them with the urethane sealant..straight out of the box. I've modified quite a few trail shoes by now. Haven't found a shoe yet...that can hold up on its own...past 300 miles.
I've concluded...it's just the way it is...300 miles is the mark. I used to think shoes should last for 500 miles...but I've lowered my expectations.
* Yeah...I really wanted to get a look at those insects...but I'm telling you..they were not going to let me. I run in just shorts and shoes..so when they came at me again (couldn't really see them..but felt them bumping into my head)...I didn't hang out too long. Not long at all.