Work Pants for low back Sciatica

I've got a bulging L5-S1 disc giving me sciatica down my left leg usually. I work as a multi-craft maintenance technician walking on concrete. I've noticed certain jeans I wear with my belt make my sciatica much worse that day verses other days with other jeans. What jeans or work pants are out there that can help minimize the squeezing on my L5-S1 disc area on my low back. (I've thought about maybe fleece lined jeans, which may work for winter but come summer they might become an issue with heat). Any and all recommendations from you all is greatly appreciated!