A: Hello - These are indeed, matte.
A: That's a great question! I'm afraid that this pair of tights does not have a gusset. Thanks for asking!
A: Hi cookie lover - Great question! The sizing for these tights is as follows: S/M = Height (4'11"-5'6"), Weight (100-150 lbs), M/L = Height (5'4"-6'), Weight (130-180 lbs), L/XL = Height (5'5"-6'), Weight (160-210 lbs), and 1X/2X = Height (5'5"-6'), Weight (190-250 lbs). Thanks for asking! - Alli