Camera gear does not get packed on a plane, so with that and a older laptop it gets stinking heavy. I will never again use the shoulder strap on a hike, the TT backpack strap is perfect. A snap holds the handles on top of the bag and two clips attach to d rings on the bottom of the bag.
The two TT bags I have are the UD 50 V1 and UD 60 V2
2000 740i-Annalisa and 2008 335i-Weebl. Weebl may wobble but has DTC
2012 X5d in Sparkling Bronze ( The Ultimate Cat Carrying Machine)