i use this one - works well for me - stainless, with a neoprene carrier / handle / shoulder strap - Swig Savvy Sports Water Bottle, Vacuum Insulated Stainless steel, Double Wall Wide mouth Leakproof Lid, And Storage Sleeve - Half Gallon 64oz (Black) https://www.amazon.com/dp/B018R6KJFY/ref=cm_sw_r_cp_api_glt_fabc_J4RKMKP40NK03N91G2D2?_encoding=UTF8&psc=1