Alexa Chung’s camera bag
One bag that can be worn across the body or on the shoulder is two bags. Almost nobody checks whether the strap allows it.
Wearing: Everyday, in London — The returned Gucci Horsebit in a camera-bag shape, on an adjustable strap
Gucci brought the Horsebit back in a camera-bag shape this year, and Alexa Chung is among the people who picked it up. The detail worth extracting is unglamorous and appears in the coverage almost as an aside: the strap adjusts, so the same bag works crossbody or over the shoulder.
That sounds trivial. It is the single most consequential specification on a small bag, because the two positions are genuinely different objects. Worn crossbody, the strap crosses the torso and the bag is secure and hands-free — a travelling, walking, city bag. Worn on the shoulder with a short strap, the same bag sits at the hip and reads as dressed, because a diagonal strap across the chest is the visual signature of practicality.
A bag that only does one of those is committed for life. A bag with a genuinely adjustable strap changes register with a buckle, which is the closest thing to getting two bags for one.
Two things to check, and both are usually in the listing. Maximum strap drop needs to be around 22 inches or more for crossbody on most adults — anything quoted at 18 or 20 is a shoulder strap being described optimistically. And the strap must be removable or adjustable by buckle, not fixed. A knot in a leather strap is not an adjustment; it is damage.
What transfers
Check the maximum strap drop before anything else on a small bag. Under about 22 inches it will not sit properly crossbody however it is photographed, and a strap that adjusts by buckle turns one bag into two — hands-free and practical long, dressed and hip-height short.