Patagonia - Men's Thermals and Base Layers Size Chart
| Alpha Size | Chest | Hip | Arm Length |
|---|
| XXS | 84 cm | 81 cm | 76 cm |
| XS | 89 cm | 86 cm | 81 cm |
| S | 94 cm | 91 cm | 84 cm |
| M | 102 cm | 99 cm | 86 cm |
| L | 112 cm | 109 cm | 89 cm |
| XL | 119 cm | 117 cm | 91 cm |
| XXL | 127 cm | 124 cm | 94 cm |
| XXXL | 142 cm | 140 cm | 95 cm |
| | | |
| Alpha Size | Waist | Hip | |
| XXS | 66 cm | 81 cm | |
| XS | 71 cm | 86 cm | |
| S | 76 cm | 91 cm | |
| M | 84 cm | 99 cm | |
| L | 91 cm | 107 cm | |
| XL | 99 cm | 114 cm | |
| XXL | 107 cm | 122 cm | |
| XXXL | 114 cm | 130 cm | |
How to Measure Your Chest & Arm Length
Wear just an undergarment or nothing at all.Stand up straight with your arms hanging by your sides and breath normally.Run a soft tape measure under your arm pits over the largest part of your chest and across your shoulder blades.The tape measure should be snug, but not tight.Ask a friend to run a soft tape measure from the centre of the back of your neck, across to the tip of one shoulder, then down the outside of your arm to your wrist bone. How to Measure Your Waist
Wear just an undergarment or nothing at all.Stand up straight with your arms hanging by your sidesBreath normally and run a soft tape measure around your waist just about in line with your belly button. The tape measure should be snug, but not tight. How to Measure Your Inseam
Wear just an undergarment or nothing at all.Stand up straight with your arms hanging by your sides and your feet shoulder width apart.Ask someone to help you to measure from your pelvis to the floor 
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