Sure there are, but I personally hate 'Ski glass anyway (I know, I know...I'm frikken CRAZY!), as their optics tweak my eyes after a few minutes and can never get quite comfortable behind em
Anyway, the older Vortex Kaibabs are pretty dang sweet, not sure about the latest model, and the Duovids are also quite excellent...but if I was going to order a 15 binocular right now I'd find a Docter Nobilem 15x60mm
Thing is just awesome, and super at twilight with the 60 on the front...apparently the old parent Zeiss-Jena version has a slight edge on it, but I've never had a chance to use one and they're nearly impossible to find.
Good Luck