AFIRSTA™ CollarMuse Modular Workday Shirt
AFIRSTA™
CollarMuse Refined Button-Front Shirt
Refined tailoring. Adjustable styling. Effortless versatility.
The AFIRSTA™ CollarMuse is a refined women’s button-front shirt designed for office wear, travel, layering and smart-casual styling. With removable collar accents, adjustable side shaping and movement-focused construction, it offers greater flexibility than a traditional dress shirt while maintaining a polished, sophisticated appearance.

Designed for Modern Dressing
One Shirt, More Ways to Wear It
01
Modular Collar Styling
A removable soft collar insert allows the shirt to transition between a crisp professional look and a more relaxed open-neck silhouette. A detachable narrow neck tie can also be added when a more polished, statement-inspired finish is desired.
02
Adjustable Side Shaping
Concealed interior tabs at the waist allow the shirt to be worn straight, softly shaped or more defined depending on your preferred fit. The adjustment remains hidden beneath the fabric to preserve a clean, uninterrupted exterior.
03
Reach-Friendly Back Pleat
A flexible center-back pleat provides additional freedom of movement for commuting, presenting, typing and everyday activity without making the overall silhouette appear oversized or overly relaxed.
04
Reduced-Gap Button Placement
A discreet internal closure at the bust helps reduce pulling between buttons while maintaining the clean, traditional appearance of the button-front design.
05
Convertible Cuffs
The cuffs can be worn full-length for a classic tailored look, folded once for a polished bracelet sleeve, or secured higher using concealed tabs for a more relaxed styling option.
06
Breathable Easy-Care Weave
The lightweight fabric is designed to help manage heat while resisting deep wrinkling, making the shirt suitable for long workdays, commuting and travel.
07
Tucked or Untucked Hem
The curved hem offers enough length for secure tucking while remaining balanced and flattering when worn loose with jeans, skirts or tailored trousers.
From Office to Off-Duty
Professional. Relaxed. Adaptable.
Meetings • Business Travel • Dinner • Layering • Smart-Casual Days
A Modern Essential, Reconsidered
AFIRSTA™ CollarMuse brings adjustable fit, styling flexibility and practical comfort to the essential women’s shirt, creating one versatile piece for meetings, dinners, travel and everyday layering.