these are dedicated slots for carrying skis or split boards in an A frame configuration on sides of any pack. the price includes 4 voile ski straps.

there is a layer of mil spec nylon web sewn on the inside of the pack behind the sleeve, then the sleeve is sewn on top of this on the outside to prevent tearing of the pack fabric.  these require a lot of extra work to add hence the cost.

The diagonal carry is one slot with a Voile strap and a lower adjustable/replaceable tail loop out of nylon webbing.