Arch Rock Hat
Hiking Pants, Trekking Pants & Soft Shell Bottoms
| US Size | Waist (in) | Hip (in) | Inseam (in) | Thigh (in) |
|---|---|---|---|---|
| S | 28–30 | 35–37 | 30–32 | 21–22 |
| M | 31–33 | 38–40 | 32 | 22–23 |
| L | 34–36 | 41–43 | 32–34 | 23–24 |
| XL | 37–40 | 44–46 | 32 | 24–25 |
| XXL | 41–44 | 47–49 | 32 | 25–26 |
Rain Jackets, Hard Shells & Insulated Parkas
| US Size | Chest (in) | Waist (in) | Hip (in) | Sleeve Length (in) |
|---|---|---|---|---|
| S | 35–37 | 28–30 | 35–37 | 32–33 |
| M | 38–40 | 31–33 | 38–40 | 33–34 |
| L | 41–43 | 34–36 | 41–43 | 34–35 |
| XL | 44–46 | 37–40 | 44–46 | 35–36 |
| XXL | 47–50 | 41–44 | 47–50 | 36–37 |
Base Layers, Fleece Mid Layers & Hiking Tops
| US Size | Chest (in) | Waist (in) | Hip (in) | Body Length (in) |
|---|---|---|---|---|
| S | 35–37 | 28–30 | 35–37 | 27–28 |
| M | 38–40 | 31–33 | 38–40 | 28–29 |
| L | 41–43 | 34–36 | 41–43 | 29–30 |
| XL | 44–46 | 37–40 | 44–46 | 30–31 |
| XXL | 47–50 | 41–44 | 47–50 | 31–32 |
* All measurements are in inches. Measure over a lightweight base layer for accuracy.
* If you're between sizes, size up — you'll want room to layer underneath on the trail.
* Actual fit may vary slightly by style, fabric stretch, and down/insulation loft.
The classic "dad hat" just got an upgrade with the soft, packable, and lightweight Arch Rock performance snapback cap. Breathable and quick-drying, it's built for hot and sweaty days on the trail or the beach—while its timeless baseball cap style fits in with every outfit on every trip out the door. This hat will be your new go-to for keeping a cool head when the temps, pace, or both pick up. Designed to travel with you everywhere you go, the pliable bill and malleable hat fabric adapt to your needs and pack size, whether you prefer a flat or super-curved brim or need to stuff it into the smallest corner of your rucksack.