So I found a standard mouth straw lid, which is The Coldest Water Standard Size Mouth Hydro Sports Straw Cap Flip Top Lid - Multi-Compatible with Standard Flask Mouth Size Stainless Steel Water Bottles https://www.amazon.com/dp/B017O9DLQY/ref=cm_sw_r_cp_api_i_TB7pDb8SMJNVZ but I couldn’t find a flip lid, only one that’s similar to a chug lid which is bottlebottle Flip Top Lid Replacement Cap for Hydro Flask Standard Mouth Bottle with Carrying Loop Handle https://www.amazon.com/dp/B07MC3QFTN/ref=cm_sw_r_cp_api_i_hE7pDb0ZYV76D