Thermal Insulation Compartment: Miracol hydration backpack is equipped with a high-quality aluminum foil insulation outdoor sports.
Lightweight & Adjustable: 16.9 x 9.4 x 6.3 inches in size and 1.46 lbs in weight. Adjustable shoulder breathable mesh pad in the back area speeds up air-flow and to keeps you cool and dry. Foam padded shoulder straps are extremely comfortable.
Leak-Proof 2L Water Bladder: Include 2L(68oz) BPA free food grade hydration bladder, the bite valve is equipped with dust cover to prevent dust and dirt.