Help
Size & Fit
How to measure for a hat, how collars fasten, and how to read bag measurements.

Hats
All SOREVVYN hats come in two sizes. Measure around your head with a soft tape measure, about 1 cm above your ears and across the middle of your forehead, where a hat naturally sits.
| Size | Head circumference | Typical fit |
|---|---|---|
| S/M | 55–57 cm (21.7–22.4 in) | Smaller to average heads |
| M/L | 58–60 cm (22.8–23.6 in) | Average to larger heads |
Between sizes? Choose the larger size — the soft quilted crown sits comfortably rather than tight. Each hat page lists its brim width and crown height.
Collars
Collars are detachable and fasten at the back (or the front, for the Sailor Channel Collar) with ties, a button or a snap. The inner neckline measurement on each product page is the length around the inside edge. Ties allow a few extra centimetres of adjustment; button and snap collars fit the listed size.
- Measure around the base of your neck where a shirt collar sits.
- Collars sit on top of a crew-neck knit, T-shirt or shirt — add about 1–2 cm if you will wear them over a thick knit.
Cuffs
Cuffs are sold in pairs. Each product page lists the cuff circumference and the adjustment range of the snap or elastic loop. Measure around your wrist, or around the sleeve if you plan to wear them over a sweater.
Bags, pouches and sets
Measurements are given as width × height × depth, measured across the outside of the item at its widest points, with the handles or straps excluded. Handle “drop” is the distance from the top of the handle to the top of the bag. Because the pieces are padded, the usable inside space is a little smaller than the outside measurement, and measurements may vary by up to 1 cm.
Not sure whether something will fit your phone, a notebook or a water bottle? Email support@sorevvyn.shop with the item and we will check for you.