OK so I'm a little OCD, I admit it. But over the last few years since I started looking for "the perfect m4/3 bag" I started keeping a spreadsheet of sizes so I figure out if the new bag was bigger/smaller than x bag I had. I've owned over a dozen of them and personally inspected another 10-20? So I figured I'd share: Outside then Inside (if available) Domke F-10 11.5 x 6.0 x 9.0" (29.2 x 15.2 x 22.8cm) 9.0 x 3.0 x 7.0" (22.86 x 7.62 x 17.78cm) Trekker Ruggedwear 4.5 x 5.5 x 7.0" (11.4 x 14.0 x 17.8 cm) 4.0 x 5.0 x 5.5" (10.2 x 12.7 x 14.0 cm) J-810 13.5 x 5.75 x 11.5" (34.3 x 14.6 x 29.2cm) 12 x 5.0 x 10" (30.48 x 12.7 x 25.4cm) F-5XC (Black) 10.75 x 5.5 x 10.75" (27.3 x 14 x 27.3cm) 10.25 x 5.0 x 10.25" (26.04 x 12.7 x 26.04cm) F-5XZ RuggedWear 10 x 4.5 x 10.75" (25.4 x 11.4 x 27.3cm) 9.75 x 4.0 x 9.25" (24.77 x 10.16 x 23.5cm) J-5XB Shoulder 10 x 4.5 x 7.25" (25.4 x 11.4 x 18.4cm) 9.5 x 4 x 6" (24.1 x 10.2 x 15.2cm) 1.25 lb / 567g J-5XA 8.0 x 4.5 x 8.0" (20.32 x 11.43 x 20.32cm) 7.5 x 4.0 x 7.5" (19.05 x 10.16 x 19.05cm) F-6 11.5 x 7.0 x 7.5" (29.21 x 17.78 x 19.05cm) 11.25 x 5.5 x 7.0" (28.58 x 13.97 x 17.78cm) F-9 8.75 x 6.0 x 9.0" (22.23 x 15.24 x 22.86cm) F-945 5.0 x 7.0 x 3.5" (12.7 x 17.78 x 8.89cm) F-8 9.0 x 6.0 x 7.5" (22.86 x 15.24 x 19.05cm) 6.5 x 3.75 x 6.5" (16.51 x 9.53 x 16.51cm) Crosstown Courier 10"L x 4.5" x8.5" 9.5"L x 4" x 7.75" 2.9 lb / 1.3 kg ONA Bowery 10.5 x 7.0 x 4.0" / 26.7 x 17.8 x 10.2 cm 10.0 x 6.0 x 4.0" / 25.4 x 15.2 x 10.2 cm 1.4 lb / 0.6 kg Prince Street 12.5" X 10" X 4.5" 12" X 9" X 4" 2.6lb Brixton 13.5" X 10.5" X 5" 13" X 9" X 5" 3.1lb Wotancraft Ryker 11.2 x 8.25 x 4.7 / 28.5 x 21 x 12 cm 10.25 x 7.9 x 3.5 / 26 x 20 x 9 cm Sirui MyStory Mini 10.2 x 3.9 x 7.1" (25.9 x 9.9 x 18.0 cm) MyStory 11 12.6 x 4.3 x 9.5" (32.0 x 10.9 x 24.1 cm) MyStory 13 13.8 x 4.7 x 10.2" (35.0 x 11.9 x 25.9 cm) Timbuk2 Snoop x-small 12.0 x 7.9 x 4.7" (30.5 x 20.1 x 11.9 cm) 1.7ibs Think Tank Hubba Hubba Hiney 11.4" x 7.3" x 5.3" (29 x 18.5 x 13.5 cm) 10.6" x 6.7" x 4.0" (26.9 x 17 x 10 cm) Speed Changer V2.0 8" x 7" x 4.5" (20.3 x 17.8 x 11.4 cm) 7.5" x 6.7" x 3.0" (19.0 x 17.0 x 7.6 cm) Slim Changer 8.2" x 5.6" x 4.0" (20.8 14.2 x 10.0 cm) 7.4" x 5.3" x 3.0" (18.8 x 13.5 x 7.6 cm) Urban Approach 5 10.2” x 7.1” x 5.5” (26 x 20 x 14 cm) 9.4” x 6.5” x 3.9” (24 x 16.5 x 10 cm) 1.4 lb / 0.6 kg Urban Approach 10 12.4 x 8.3 x 5.5" / 31.5 x 21.0 x 14.0 cm 11.0 x 8.7 x 3.9" / 29.0 x 22.0 x 10.0 cm 1.7 lb / 0.8 kg Retrospective® 5 10" x 8.5" x 6" (25.5 x 21.5 x 15 cm) 9.5" x 7.8" x 4.5" (24 x 19.5 x 11.5 cm) 2.3 lb / 1.0 kg Mirrorless Mover® 5 4.7” x 5.9” x 3.9” (12 x 15 x 10 cm) 3.5” x 4.7” x 3.1” (9 x 12 x 8 cm) Mirrorless Mover® 10 5.3” x 6.1” x 4.5” (13.5 x 15.5 x 11.5cm) 4.9” x 5.3” x 3.7” (12.5 x 13.5 x 9.5 cm) Mirrorless Mover® 20 8.9” x 6.1” x 4.5” (22.5 x 15.5 x 11.5cm) 8.5” x 5.3” x 3.7” (21.5 x 13.5 x 9.5 cm) Mirrorless Mover® 25i 11” x 6.1" x 4.7” (28 x 15.5 x 12 cm) 10.6” x 5.5” x 4.1” (27 x 14 x 10.5 cm) Tenba DNA 8 10,5 X 7,5 X 5 in. (27 X 19 X 13 cm) 9 X 6,5 X 3,5 in. (23 X 17 X 9 cm) 1.3 lb / 0.6 kg BYOB 10 Insert 10.5 x 8.0 x 4.5" / 27 x 20 x 11 cm 10 x 7.5 x 4" / 25 x 19 x 10 cm BYOB 9 Insert 9.0 x 6.5 x 4.0" / 23 x 17 x 10 cm 8.5 x 6 x 3.5" / 22 x 15 x 9 cm BYOB 7 Insert 7.5 x 5.5 x 3.5" / 19 x 14 x 9 cm 7 x 5 x 3" / 18 x 13 x 8 cm Switch 7 9,5 X 7,5 X 4,5 in. (24 X 19 X 11 cm) 9 X 7 X 3 in. (23 X 18 X 8 cm) Cooper 8 11 X 7.5 X 5 in. (28 X 19 X 13 cm) 10 X 6.5 X 3.5 in. (25 X 17 X 9 cm) Cooper 13 Slim 14.5 X 10.5 X 5.5 in. (37 X 27 X 14 cm) 13.5 X 9.5 X 3.5 in. (34 X 24 X 9 cm) BlackRapid SnapR 35 6.25 x 4.25 x 4.0" (15.9 x 10.8 x 10.2cm) 6.0 x 3.75 x 3.5" (15.2 x 9.5 x 8.9cm) Olympus Mini-Messenger 6.5 X 7.0 X 3.5" (16.5 x 17.8 x 8.9 cm) Crumpler Pleasure Dome (S) 5.3 x 5.9 x 3.5" (13.5 x 15.0 x 8.9 cm) Haven Pouch (S) 7.8 x 8.6 x 3.9" (19.8 x 21.8 x 9.9 cm) 1 million 5.51 x 6.30 x 3.15" (14 x 16 x 8.0cm) 4.9 x 6.7 x 2.95" (12.5 x 17.0 x 7.5cm) 2 million 8" x 6.5" x 3.5" 6.69 x 7.48 x 3.54" (17 x 19 x 9.0cm) 3 million 8.3 x 6.5 x 3.9 inches THE BUNDLE (L) 4.72 x 6.69 x 3.94" (12 x 17 x 10 cm) National Geographic NG A1212 3.7 x 3.1 x 5.1" (9.5 x 8 x 13cm) 3.5 x 2.1 x 4.7" (9.0 x 5.5 x 12cm) W2021 5.71 x 4.72 x 4.53" (14.5 x 12 x 11.5cm) 5.31 x 3.94 x 3.74" (13.5 x 10 x 9.5cm) EE 2344 6.7 x 5.9 x 8.3" (17.0 x 15.0 x 21.1 cm) 5.9 x 4.7 x 7.1" (15.0 x 11.9 x 18.0 cm) Golla G781/782/865 150 x 170 x 90 mm / 5.91 x 6.69 x 3.54 inch 130 x 150 x 80 mm / 5.12 x 5.91 x 3.15 inch M G1265 8.9 x 11.8 x 4.7" (22.6 x 30.0 x 11.9 cm) 8.3 x 9.5 x 3.7" (21.1 x 24.1 x 9.4 cm)

Thanks; I've got a spreadsheet like that too (although I hadn't been tracking interior dimensions); here's a few bags, dimensions are HxWxD: Think Tank Mirrorless Mover 10 (see OP) $45USD 0.7 lbs comments: has rain hood. has belt loop. fits E-M1 + 12-40mm with hood reversed. Tight fit. Also fits 9mm BCL, 2 batteries, 2 filters, SD cards. Mirrorless Mover 30i 8.9 x 11 x 5.7" $70USD 1.0 lbs LowePro Aventura 170 0.9 7.7 x 8.7 x 4.9" $30-100USD 0.9 lbs comments: I have this (I used to use it with my E-3 4/3 DSLR); has belt loop. I find their bags to be somewhat over-padded and bulky Topload Zoom Mini 7.5 x 5.9 x 7.5" $27USD 0.6 lbs Edit 130 9.25 x 4.84 x 5.7" comment: tried in store; not a good fit for E-M1 w 12-40mm Edit 100 5.1 x 4.1 x 6.5" $25USD comment: tried in store; too small for E-M1 w 12-40mm

i brought the wotancraft scout at Christmas. and took the chance that it would fit a em1 with 40-150 fitted which it does easily. along with 12-40, 45mm prime and em1 grip bag exterior w 31cm x d 12cm x h 23 cm insert interior w 30cm x d 11cm x h 20 cm