A cleaner line than the usual crew neck.
Front, side, back, tucked and untucked.
Finished-garment dimensions in cm and inches.
The detail that changes the look
Alto keeps the simplicity of a tee and changes the neckline. See the mock-neck shape up close, then judge how it sits on its own or above a sports jacket.
Inspect the details →
See the shape
A single portrait cannot tell you enough about chest, middle, sleeve and hem. These views let you inspect the silhouette before choosing a size. Fit will vary with body shape and size.




Start with a shirt that already fits. Measure its chest around the garment and compare it with Alto's chart. The numerical match is a starting point, not a promise about how it will feel on your body.
See the size guide ↘Measured, not guessed
These are finished-garment measurements, not body measurements. Compare them with a shirt you own and like.
| Size | Chest | Shoulder | Sleeve | Length |
|---|---|---|---|---|
| XS | 103 cm / 40.6 in | 44 cm / 17.3 in | 23 cm / 9.1 in | 72 cm / 28.3 in |
| S | 108 cm / 42.5 in | 46 cm / 18.1 in | 24 cm / 9.4 in | 73 cm / 28.7 in |
| M | 113 cm / 44.5 in | 48 cm / 18.9 in | 25 cm / 9.8 in | 74 cm / 29.1 in |
| L | 118 cm / 46.5 in | 50 cm / 19.7 in | 26 cm / 10.2 in | 75 cm / 29.5 in |
| XL | 123 cm / 48.4 in | 52 cm / 20.5 in | 27 cm / 10.6 in | 76 cm / 29.9 in |
| 2XL | 128 cm / 50.4 in | 54 cm / 21.3 in | 28 cm / 11.0 in | 77 cm / 30.3 in |
Measure all the way around the chest of a shirt you like. Enter that garment measurement to find the closest Alto chart value.
Enter a measurement to compare.
This is a chest-only numerical comparison. Check shoulder, sleeve and length too. Preferred ease and body shape vary, so this tool cannot guarantee fit.
One piece, several settings
Wear the mock neck on its own, with tailored trousers, or beneath a sports jacket. The raised collar is the common detail; the rest of the outfit can stay simple.



Product facts

Questions before you choose
The chart gives finished-garment measurements, not body measurements. Compare chest and length with a shirt you already own and like. The comparison tool shows the numerical difference, not a guaranteed fit.
The gallery shows the shirt tucked and untucked. Check the garment length for your size against a shirt you already wear that way.
The stated composition is 60% cotton and 40% polyester.
Machine wash cold, tumble dry low.
Buy 2 or more shirts to get free shipping. A single shirt does not qualify. Shipping options and any charges are shown at checkout.
A familiar piece, considered differently
Explore Alto in every colour and from multiple angles. Use the garment measurements to choose your size.
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