STM Sonic

The Sonic includes an array of storage solutions for just about everything but the weekly shop, with pockets and compartments galore. While roomy and relatively bulky, the Sonic is deceptively lightweight. This gives users the option to junk the extras when they want to travel light or pile on the pounds and cram plenty in. A padded, well-balanced shoulder strap helps lighten the load.

Macworld's buying advice

We found the water-resistant lining faired well in bad weather, while the exterior wiped down without marking. One minor complaint is the lack of sizes and colors. Overall the Sonic proves a trendy yet durable choice.