15 liter backpack

Tressify Yellow 25 Liter Hiking Backpack, Lightweight Daypack For Trekking And Travel, Water-Resistant, 10.6 X 16.1 X 5.9 In (27 X 41 X 15 Cm)

25 Liter Nylon Hiking Backpack, Lightweight Water-Resistant Daypack For Travel And Climbing, Yellow, Dimensions: 10.6 X 16.1 X 5.9 In (27 X 41 X 15 Cm)

Bellroy Venture Travel Pack (26 liter carry on travel backpack, with laptop sleeve, RFID protection and bonus 15 liter tote bag) - JetBlack