M911 Semi-Elastic Rainbow Boardshorts
A newer rainbow short that sharpens the waistband without losing comfort.
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Story & heritage
Sundek introduces the M911 as a 2026 collection update to the iconic taffeta family. It keeps the short 35 cm length, drawstring, nylon taffeta fabric, triple stitching, and back rainbow, but changes the waistband architecture.
The official description explains the semi-elastic waist: elastic at the back, fixed at the front, intended to combine adjustability with a cleaner front line.
Materials & craft
The M911 uses 100% signature nylon taffeta with a silky, lightweight hand and very quick drying. Three-needle stitching reinforces the garment for repeated swimming, surfing, and beach wear, while the semi-elastic waistband gives more structure than the fully elastic M504.
How to choose & style
The M911 is the tailored read of the Sundek icon. Wear it when you want a swim short that can pass as a casual short from the front, with the rainbow reveal saved for the back view.