I have been carrying my G19 in a Blade Tech NANO IWB holster now for about 3 months, daily and it is the most comfortable IWB I have ever used. It is thin and the contours on it really make it comfortable. Blade Tech has done a good job of getting rid of the hot spots on this holster that can rub you wrong and make an IWB uncomfortable.
I have tried about all the IWB holsters out there and this is the only IWB I have used that is wearable all day with abosultley no discomfort.
To me it feels as comfortable as wearing a OWB Glock sport/combat holster.
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