Shirts are professionally serged, zippers are double stitched, and collars are nicely lined. Crystals are set with a commercial heat press so they typically don't fall off.The crystals used are very good quality, they are not swarovskis, but they are a machine cut crystal and have excellent sparkle to them. I do have swarovskis on hand and you can upgrade almost any shirt with a swarovski crystal for an extra charge. Shirts are made of a 4 way stretch lycra or spandex. The shirts can be hemmed at the bottom or left serged to tuck in. The collars can be left down like photos show or tacked up in place so they don't move. I am always open to custom orders.. We can also change crystal designs on any of these shirts I have available. I am here to work with you and make you completely satisfied with your order. If you have any other questions please contact me via email. I check my email several times a day and will try to reply that same day .