The 34 oz. bottle is ultra-lightweight and features a BPA-free non-leaching interior lining, which combats residue build up so flavors won't stay behind. Hand washing is recommended. The convenient twist-action cap has a 3/4" loop for easy carrying, so they can take it on hikes, to outdoor festivals or to picnics. It measures 10 1/3" x 3" diameter, giving you lots of room to add your branding information!