T-band tights, tights with reinforced panty section, tights without reinforced panty section, ouvert tights, "sheer to waist" - explained.
Sheer tights, microfiber tights - without pattern:
Panty part - reinforced or T-band
Cotton gusset
The cotton gusset - sewn into the inside of the tights. Allows for better hygiene and also reduces the friction of the fabric on the skin.
For Fiore and Gabriella brands Normally size S is without cotton gusset and larger sizes have cotton gusset.
Without cotton gusset
With cotton gusset
The first photo is a zoom, but as you'll see in the other two photos, the gusset isn't really visible when you're wearing the tights
Unusual tights - with pattern:
Pattern on the entire length of the tights - many patterned tights from the Gabriella brand have the pattern on the entire length.
Pattern on the legs but not on the panty part - usually patterned tights from Fiore do not have a patterned panty part, but there are some new models where the panty part is also patterned.
And last but not least, ouvert tights - tights with an open crotch