3How Hostel @ Sukhumvit 21 sits in central Sukhumvit in Bangkok and is reached via Exit 1 of Sukhumvit Station. It offers single rooms and capsule-style and mixed dormitories, and rooms have a refrigerator and a kitchen for heating food. The counter stays open late, toilets and showers are on the second floor, and a common bar on the fifth floor is open for resting without ordering. The shared toilets and showers have weak ventilation, so damp and odors are strong.