Convenient and portable, this AT6603 2L Long Neck Water Bladder Hydration Pack will a perfect companion during a long run or cycling trek. Made of top grade TPU materials, it is anti-bacterial, extra heavy-duty and durable. Double-sided TPU thermal bonding technique avoids use of glue or other toxic adhesive. This hydration pack is also equipped with a silicone watertight hose system that offers quick opening and easy sipping. And it is easy to fill the bladder with an extra large filling cap. Silicone seals prevent leak so you can rest assured to pack it into your bag. Click and order right now!