Features‎:‎ ‎- 30L bicycle backpack‎,‎ made of ultralight water‎-resistant and tear‎-resistant nylon‎- Adjustable shoulder strap and waist belt to fit your body size‎,‎ effectively avoid the backpack shaking while running‎- Mesh and poriferous XPE material at the back for maximum breathability and comfort‎- Bag size‎:‎ 27 x 18 x 44cm / 10.63 x 7.09 x 17.32 inches‎- Shoulder straps length‎:‎ 45 ‎- 85cm / 17.72 ‎- 33.46 inches‎- The maximum loading weight‎:‎ 25kg Product weight‎:‎ 0.4580 kg Package weight‎:‎ 0.4800 kg Package Size‎(‎L x W x H‎)‎‎:‎ 48.00 x 24.00 x 3.00 cm / 18.9 x 9.45 x 1.18 inches Package Contents‎:‎ 1 x Backpack