Size guide
Find your fit
Every Polar Quest vest has its own chart. Measure your chest, then check the chart for your product below.
Hi-vis fan vest
'26 Hi-Vis Fan Vest
For the New '26 Hi-Vis Cooling Vest.

| Size | Chest | Shoulder | Back length |
|---|---|---|---|
| S | 45.7 | 18.4 | 27.4 |
| M | 48.0 | 19.0 | 28.0 |
| L | 50.4 | 19.5 | 28.5 |
| XL | 52.8 | 20.1 | 29.1 |
| XXL | 55.1 | 20.6 | 29.7 |
| 3XL | 57.5 | 21.2 | 30.3 |
ChestAll the way around, just under the arms.
ShoulderShoulder point to shoulder point across the back.
Back lengthCollar to hem at the center back.
Ordering the '25 Model Hi-Vis Cooling Vest? It runs small and uses a different chart. See the Gray Fan Vest chart and order one size up.
Hi-vis fan shirt
Class 3 Shirt
New '26 Class 3 Shirt (half sleeve).

| Size | Chest | Shoulder | Back length |
|---|---|---|---|
| S | 45.7 | 18.4 | 27.4 |
| M | 48.0 | 19.0 | 28.0 |
| L | 50.4 | 19.5 | 28.5 |
| XL | 52.8 | 20.1 | 29.1 |
| XXL | 55.1 | 20.6 | 29.7 |
| 3XL | 57.5 | 21.2 | 30.3 |
ChestAll the way around, just under the arms.
ShoulderShoulder point to shoulder point across the back.
Back lengthCollar to hem at the center back.
Fan vest · also '25 Hi-Vis
Gray Fan Vest
For the New '26 Cooling Gray Vest and the '25 Model Hi-Vis Cooling Vest. Both use this chart.

| Size | Chest | Shoulder | Back length |
|---|---|---|---|
| S | 42 1/2 | 17 15/16 | 25 5/8 |
| M | 44 7/8 | 18 1/2 | 26 1/16 |
| L | 47 1/4 | 19 1/8 | 26 3/4 |
| XL | 49 5/8 | 19 5/8 | 27 3/8 |
| XXL | 51 15/16 | 20 1/4 | 27 15/16 |
ChestAll the way around, just under the arms.
ShoulderShoulder point to shoulder point across the back.
Back lengthCollar to hem at the center back.
Runs small. Order one size up.
No battery
Ice Vest
Ice Cooling Vest. Two sizes with adjustable straps.

| Size | Height (center) | Width (upper) | Chest |
|---|---|---|---|
| M–L | 14.57 | 10.24 | 22.44 |
| L–XL | 15.35 | 10.63 | 25.20 |
HeightTop of the back panel to the hem, center.
WidthAcross the upper back.
ChestAround the bottom of the vest.
Straps adjust, so each size covers a range. Measurements can vary by 1–2 cm (0.4–0.8 in).
Still not sure?
Send us your height, weight and chest at support@polarquestshop.com and we'll pick the size for you.
