The gluing takes some practice and you have to figure out for each garment the optimum position only so that one ultimately not yet a small Schwitzstelle has ... but if you have the hang of first times out, the things priceless (though admittedly not exactly cheap) are ...
In white clothes they are seen mostly through something, but depending on the thickness of the substance or if the garment lies not too tight, you have to look in more detail already here.
All in all I would recommend this product to all those who do not always want to sink into the ground when it (anyway times resurface shortly before almost ;-) at a meeting and then also look at you all "under the arms.
And since you have indeed not need to use the parts of each day, the price is also to get over (especially since they can also be easily a second time (to use the same piece of clothing), if you do not sweat too hard because then absolutely no odor arises).