Lomond 3 Litre Hydration Bag Description When we workout our bodys begin to warm, & as a direct result of this increase in core-temperature we begin to sweat. This process allows us to maintain normal function, complete regular day-to-day errands or compete within sports. However failing to replenish these lost fluids can have a detrimental effect on performance. Approx. 2/3 of human body weight is made up of water & any reduction in this, regardless of how small will inhibit how effectively we complete these tasks. Dehydration can affect the body in a number of ways but commonly symptoms present with a reduction in reaction times, loss of concentration or impaired judgement which could mean the difference between winning & losing. The Ultimate Performance Lomond Hydration Pack holds a massive 3 litre water sack plus an additional 15 litre storage to help ensure you are never without essential equipment. This fully functional lightweight kit bag will keep you fully hydrated even during the most testing of conditions while the adequately sized storage compartment can carry a range of items, you need never compromise again! This compact, lightweight hydration & storage system is perfect for a range of different sporting activities & should be considered when planning to participate in any of the following: Running Walking / Hiking Cycling Climbing Hunting / Tracking Featuring a hands-free bite on/off valve the UP hydration pack will not restrict you in anyway, you can take fluids on-the-move while safe in the knowledge essential liquids will not be lost. No more crucial time spent stopping for a drink & no more additional stress & strain your back, the Ultimate Performance Lomond Pack means you can drink when you need it most! Features A huge 3 Litre bladder included Bite valve with secure on/off tap prevents leaks when not in use Wicking air-mesh back with air channel for comfort & padding Massive inner & outer pockets providing 15 litres of storage Air-mesh shoulding padding for a lighter more comfortable feel Headphone port & inner stash pocket that will fits any portable entertainment device Quick access pockets for energy bars & gels or other essentials Equipment clip allowing users to a secure bike helmet plus additional bulky items Separate bungee zone ideal for wet rainwear Reflective detailing for enhanced night visibility Single finger zippers which quick & easy to use Fully adjustable straps, one size fits most