35cm (L) x 20cm (W) x 20cm (H) / 13.7" (L) x 7.8" (W) x 7.8" (H)

Shoulder strap - 132cm / 51.9 inchs

Weight: 0.3 kg, approx. 14 liters

20L：

40cm (L) x 20cm (W) x 25cm (H) / 15.7" (L) x 7.8" (W) x 9.8" (H)

Shoulder strap - 132cm / 51.9 inchs

Weight: 0.37 kg, approx. 20 liters

All measurements are external, internal measurements may differ by up to 1-2cm.

Ample space for a variety of items - headphones, umbrella, water bottle, change of clothes, digital devices (kindle, tablet, power bank).