Box blouse

from $289

Originally developed in 2018, the Box Blouse is a tried and tested favourite within the Katalyst range. The design has evolved over time but the core principles remain.

In essence the Box Blouse is a collared short sleeve shirt with a boxy, relaxed fit, accentuated by a generous pleat in the back.

The iconic flap version features an added element of drama. The detached fabric overlays act as a modesty cover for lightweight materials. On heavier fabrics they add a notable jacket-like feel.

For the times you’d like a shirt with a bit less drama, you can also opt for the paired-back version which does away with the flaps. 

The Box Blouse is offered in femme and masc variations — the femme cut has narrower shoulders and body with slightly shorter sleeves.

available fabrics >

siZe chart


Size S M L
Shoulder point to shoulder point 49cm 50cm 52cm
Underarm to underarm laid flat 58cm 60.5cm 64cm
Length from centre back neckline 61.5cm 62cm 63cm
Sleeve length 26.3cm 26.8cm 27.3cm

MASC FIT

FEMME FIT

Size S M L
Shoulder point to shoulder point 49cm 51cm 54cm
Underarm to underarm laid flat 48.6cm 51.6cm 54.6cm
Length from centre back neckline 48.6cm 58.5cm 60cm
Sleeve length 21.2cm 22cm 22.8cm

Past examples

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