Got a friend who is using this Sarah Wells Breast Pump bag. She got it as a gift from the colleagues and absolutely loved it. Fits her S1 well and could fit other stuff (can fit her laptop as well, which she sometimes brings to and from work). Looks good too! https://www.amazon.com/Sarah-Wells-Kelly-Convertible-Breast/dp/B0128S0EXY?ie=UTF8&keywords=sarah%20wells&linkCode=sl1&linkId=82d1150cfb06bfeed4207aa1da5e3ab6&qid=1456713739&ref_=as_li_ss_tl&s=baby-products&sr=1-1&tag=beinspibecrea-20
I used an S1 at work before but I didn't bring it to and fro - I left it in my office drawer. It's a small company so there's no risk of it being stolen. I also DL before and after work so I didn't need the pump. I just used a canvas eco-bag to bring it to work. It also fits in the Anello bag.
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