PRO G3 Hydration Rig | Vias
Size Guide
All charts show body measurements, not garment measurements. For technical outdoor use, choose your size from body data first, then adjust for layering and fit preference. If your numbers fall between sizes, see the fit notes under each table.
Men's Tops
Body measurements in inches. Arm length from center back neck to wrist.
| Size | Chest (in) | Waist (in) | Hip (in) | Arm (in) |
|---|---|---|---|---|
| S | 34–36 | 28–30 | 35–37 | 32.5–33 |
| M | 38–40 | 32–34 | 38–40 | 33.5–34 |
| L | 42–44 | 36–38 | 41–43 | 34.5–35 |
| XL | 46–48 | 40–42 | 44–46 | 35.5–36 |
| 2XL | 50–52 | 44–46 | 47–49 | 36.5–37 |
| 3XL | 54–56 | 48–50 | 50–52 | 37–37.5 |
Between chest and waist sizes: use chest for jackets, waist for pants. Between sizes for layering: go one size up.
Men's Bottoms
Numeric waist sizes. Inseam shown regular; short/tall available on selected styles.
| Waist tag | Waist (in) | Hip (in) | Inseam R (in) | Inseam T (in) |
|---|---|---|---|---|
| 30 | 30–31 | 37–38 | 31 | 34 |
| 32 | 32–33 | 39–40 | 32 | 34 |
| 34 | 34–35 | 41–42 | 32 | 34 |
| 36 | 36–37 | 43–44 | 32 | 34 |
| 38 | 38–39 | 45–46 | 32 | 34 |
| 40 | 40–41 | 47–48 | 32 | 34 |
Base & insulation bottoms
Base layers run next-to-skin; insulation/rain bottoms use the same waist tag but add room. If wearing heavy base layers, stay true to waist tag or size up one for insulated shells.
Women's Tops
Body measurements in inches. Arm length from center back neck to wrist.
| Size | Chest (in) | Waist (in) | Hip (in) | Arm (in) |
|---|---|---|---|---|
| XS | 32–33 | 25–26 | 35–36 | 30–30.5 |
| S | 34–35 | 27–28 | 37–38 | 30.5–31 |
| M | 36–37.5 | 29–30 | 39–40 | 31–31.5 |
| L | 38.5–40.5 | 31.5–33 | 41.5–43 | 32–32.5 |
| XL | 42–44 |
Best For: Hydration System
This minimalist hydration pack is built for the PRO G3 Bino Harness or PRO Chest Pack and holds up to a three-liter hydration system (Platypus 3L Hoser not included). It’s the perfect kit for a stalk, hike, or glassing session when only optics, hydration, and minimal gear are needed.
The hydration rig clips to the upper shoulder straps and is securely held in place by lacing the lower straps through the rig's lower mesh opening. The rig conveniently clips in and stows inside any KUIU PRO backpack as a hydration bag holder, and when it's time to drop the pack for a stalk, it quickly and easily connects to the bino harness.
It features two zippered pockets for small gear and two removable compression straps to keep items from shifting or to secure a light jacket to the outside.
*While attached to a bino harness, the system balances best with less than 2 liters of water.