Bellamy, thank you for meeting with us, the mother says
For some circumstances, though, a larger pack will be helpful or necessary

Material and care Do Not Wash Do Not Bleach Do Not Tumble Dry Do Not Iron Do Not Dry Clean Spot Clean Water-Repellent Fabric Water-repellent 100% of the polyester and nylon in this product is recycled (excluding trims) Measurements Backpack dimensions: W 28cm x D 18cm x H 38cm (11" x 7.1" x 15") Backpack volume: 15.5L Pouch dimensions: W 18cm x H 20cm (7.1" x 7.9") Pouch volume: 1.5L Crossbody strap length when fully extended: 150cm (59") Product Features Silicone grippers help keep straps in place Side pockets for quick access to water bottle, umbrella, or snacks Clip a carabiner or your favourite accessories to the D-ring Detachable front pouch can be used as extra storage or removed from backpack and worn cross-body there's a shoulder strap inside Interior pockets to organize your small items of importance Interior padded pocket fits a 16" laptop Interior pocket designed to hold your water bottle Hook and drawstring closure

I also added a normal beach towel to my tests as a control, and as expected, it was the last to dry and completely stained
Multiple sizes and gender-specific fit for long trail comfort
The 1-inch hole spacing for the safety spotter bars means you will always find that perfect stretch without compromising safety