Stay cool and on the move with the 21oz HidrateSpark PRO 2 bottle body, built for daily hydration in a sleek, portable form. Made from recycled 18/8 stainless steel with double-wall vacuum insulation, it keeps your water cold for up to 24 hours. Designed to fit most cup holders, it’s the ideal companion for commutes, workouts, or wherever your day takes you. The textured powder coat offers a secure, sweat-proof grip, and the lead-free construction ensures safe, worry-free sipping every time. Compatible only with the HidrateSpark PRO 2 sensor and lids. Sensor and lid sold separately.