Gregory Backpacks & Bags Pace 6L H2O Pack - Women's Black Ice One Size 143374T048. Minimize drying time and bacteria growth with a soft-molded 3D design. Maximize usability with the molded spine handle and EasyGrip fill port for simple and convenient refilling.Stay cooler longer with a custom perforated 3D foam backpanel. The 3D dual-layer construction provides space for airflow even with the pack on your back. Multicolored dynamic mesh flows seamlessly from the backpanel into the shoulder harness padding.