Stolt Alpha is our original design and it has a capacity of 20 litres (25 litres when using the expandable compartment). Stolt Podium is a smaller version of Alpha (10 litre capacity expanding to 13 litres) with some additional features such as our ‘3 way carry’ meaning that the bag can be carried as a backpack, briefcase or a shoulder bag. Where Alpha serves you even on an over-night business trip, Podium is classified more as a day pack that fits your daily essentials. Our garment box is designed for Stolt Alpha to carry more clothes whereas Stolt Podium has an internal built-in sleeve to fit a shirt and trousers. The garment box doesn’t fit inside Stolt Podium.