TechLifeBrian (Brian) here -- I have been using NSG Strongman sandbags for a while (around 5 years). I originally purchased the 150 Lbs. bag and had it shipped during my stay in South Korea (still has some Korean sand in it lol). The bag has held up to over-the-shoulder, carries, and repeated drops (because who would ever gently put down a sandbag). The material feels tough (on par or better than Rogue, which I also own). I have used other brands of strongman sandbags, and they have torn, and the seams have come undone (don’t even get me started on the sandbags with handles).
More Recently, I also purchased a 200 Lbs. bag, which is a beast. The 200 Lbs. bag has also been holding up well – I am probably dropping it harder lol! I really like the camo color option of these. My aunt saw my post on Instagram with the camo-colored bag and thought it was my Army backpack. She was concerned I was getting deployed (I’ve been out of the miliary over 15 years now).
Funny side note, I sometimes tag NeverStopGrindin in my posts on Instagram and the replies and comments have been awesome. NSG even jazzed up one of my latest posts (see in picture).