Nur.

Letters take weeks. Sometimes longer. Nur doesn't quite understand why, but it doesn't bother him much either: for him, things worth having take time. Mansa sent him red sand from the Okavango in a small plastic bag. Nur opened it, touched it with his fingers and kept it with the rest of his things under the bed. Red earth from the Okavango. He'd never had anything from so far away.

When Nur sent Mansa a drawing of a pangolin, Mansa wrote back with one line: "You look like a pineapple with legs." Nur didn't know if it was a joke. He stared at the letter with a frown. Aminah explained it was affectionate — that's how friends who don't know each other well yet but already like each other a little talk. Nur replied with another drawing: an elephant with the caption "you look like a rock with a hose." Mansa writes a lot. Nur writes little but draws plenty. Letters go back and forth, and each one brings something inside: a drawing, a dry leaf, a piece of colored thread, a new stone.

The distance between Singapore and Botswana — eleven thousand three hundred kilometers, not eleven thousand — is an abstraction for a six-year-old. Nur has no map in his head. What he has is a concrete idea: Mansa lives far away, farther than Johor Bahru, which is where his mother Siti lives. Nur's mother calls every two weeks from the other side of the Strait. Sometimes she sends money. For Nur, Siti is a voice on the phone and a photo on Aminah's bedside table. Mansa, on the other hand, is an envelope with sand and big handwriting.

Nur puts heavy things in envelopes. Stones, pieces of sea glass, a nut he found in the void deck. Aminah has learned to bring a roll of packing tape when they go to the post office. The man at the counter already knows them. The first time he asked if the contents were fragile. Aminah said no. Nur said yes, very quietly. Since then the man puts on a "fragile" sticker without asking.

What travels between the two children has no monetary value. Mailing things is closer to caring than to giving. A handful of delta sand costs nothing. A smooth stone from the park either. But Nur picks them with the same care that others put into choosing expensive gifts: he holds them, turns them, looks at them with narrowed eyes. If the stone doesn't feel quite right, he puts it back on the ground. If he likes it, he keeps it in his overalls pocket and washes it under the tap when he gets home. That clean, dry stone is what goes inside the next envelope to Botswana.

The backpack is white. Nur's portrait fills the front panel, printed in full color on the fabric. The clean background lets the sand-pink scales and the denim overalls do the visual work without noise. For everyday use: front pocket, side pockets, padded main compartment. Exact dimensions and capacity in **Capacity, pockets and load**. Materials in **Material and structure**.