Thule Chasm 90L Sport Duffel This 90-litre bag (HK$1,065) has two sturdy carry handles that can be pinned to each side to clear space for backpack straps, which are stored in a side pocket. The entire bag curls into a neat stuff sack. Available at Case Collection, Wan Chai Computer Centre, 130 Hennessy Road, Wan Chai, tel: 2831 9880. Seven occasional backpacks and bags for travel ... or a trip to the store Tumi Double Expansion Travel Satchel Alpha 2 Its use of canvas and leather makes this satchel (HK$3,790) one of the more stylish options around. Includes a pocket for a smartphone within its main cavity, a zipped side pocket, and a dedicated shoulder strap. See it at Tumi, Pacific Place, 88 Queensway, tel: 2918 4688 Arc’teryx Carrier Duffel 50 A medium-sized option, this lightweight duffel (HK$1,450) carries 50 litres of gear and can also be worn as a basic backpack. It’s got rudimentary grab handles on all sides and, thanks to a special zipper design, is completely waterproof. Get it from www.overlander.com.hk . Osprey Transporter 130 One of the largest bags around, this monster (HK$990) is all about volume (130 litres) and durability. Two long handles on the top stretch from one end to the other and double as rudimentary backpack straps. Available at ospreypacks.com/hk. Samsonite X’blade 3.0 This option is half duffel, half wheeled luggage (HK$1,140). Although its telescopic handle and wheels make it look more like the latter, its U-shaped zipped lid and 150 litres capacity are the giveaways. Available at selfridges.com/HK Black Diamond Demon Duffel With a 42 litre capacity, this duffel pack (HK$749) is aimed at hikers, but its foam back panel, backpack straps and waist belt can both be removed if it’s going to be checked in. Available at protrek.com.hk. Victorinox Weekender Deluxe Another option ideal for a short trip, this sturdy and spacious 36 litre bag (HK$2,300) has two interior pockets and its own tracking ID number enrolled on the Swiss Tracker Bag Tracking Program to help lost luggage find its way back to its owner. Find it at Victorinox, Times Square, Causeway Bay, tel: 3101 2969.