It's a towel, it weighs a respectible 0.7 oz.. Don't forget to cut off the useless black tag. Doesn't help you dry and counts for weight.
Handy for washing, drying feet after stream crossings and mopping condensation off the tent walls.
Towel from REI for $9.95.
This is an amazing towel…drying time could be a little better. The black tag constitutes maybe a few grams and is worth it when hanging your towel to dry in 20 knot winds, useless I think knot.