fitting

Hello everyone, I'm trying to buy a pair of fins Seawing Nova open heel, I'm a US 11 UK 10 or EU 44 1\2 and I'm wearing a Scobapro 3mm Delat boots. I tried the medium size and it was a little tight the Large size has a bit of gap on the side of the foot. What should I go for? I'm worry to feel...

Hi. I'm a male diver after a new 5mm wetsuit (I'm in Melbourne, Australia). And i have a question about sizing and fitting. My size measurements are 100cm chest, 95cm hips, 88cm waist.... (and in imperial - 39 inch chest, 37inch hips, and 34 inch waist). I'm a bit on the fat side at the moment...

I was curious to see if anyone has the Scubapro frameless mask and how they like the fitting of the mask? I recently acquired one of these masks but can't seem to get it to stay suctioned to my face. The mask feels comfortable and there is no air coming in (creates a vacuum) but the skirt seams...