I bought this bag in the BIBA new store in the 1970's. They came in brown, lilac, white and green that I know of and made from strong canvas like Army swag bags. This is the brown version. It is washable and did initially have a stuck on printed BIBA label on the inside back but that has long since gone. The colour has faded unevenly.
The shoulder strap is adjustable and measures approximately: 40 inches: 102cms.
An interesting addition for any collector of BIBA : bags : vintage fashion and a useful item.
Item is sold as seen.
Please ask questions before bidding.