Like the temperature, your size fluctuates.

Your shoes are always a seven. Unless only an eight is left on the sale rack. Rings are a petite five. Except during allergy season, of course. And your bra? A 36B. At certain times of the month.

Q Shirtmakers can accommodate even you. The clever tailors make suits, shirts, vests, slacks, and jackets for men and women. They design with attention to your lifestyle (formal, business casual, party lush), as well as your ever-changing dimensions. Need more room in the bust? No prob. Some give in the hips? Ask and you shall receive.

Each shirt is meticulously crafted using luxury fabric (cotton, silk, wool) and is finished with mother-of-pearl buttons and two-piece, hand-turned collars. And you can choose from more than 3,000 fabrics from mills such as Lora Piana, Holland & Sherry, and Dormeuil for shirts and other items. Your custom creation will take four weeks to complete, and you can be sure it’ll fit like a glove.

Although those are a whole other problem.

Q Shirtmakers, 3699 McKinney Avenue, in the West Village (214-780-9888 or qshirtmakers.com).