Inspired by the raw transformation of metal under intense heat, the Boston Born Multi Hat features a striking color gradient that transitions from cool industrial grey to glowing yellow and molten red, symbolizing the energy and heat generated by a runner in the zone.
90% Nylon, 10% spandex
| MEN | S | M | L | XL | XXL |
| Chest (US Inches) | 35-37 | 38-40 | 40-42 | 42-44 | 44-46 |
| Waist (US Inches) | 30-32.5 | 32.5-35 | 35-38 | 38-40 | 40-42 |
| WOMEN | XS | S | M | L | XL |
| Chest (US Inches) | 31-33 | 33-35 | 35-37 | 37-39 | 39-41 |
| Natural Waist (US Inches) | 24-26 | 26-28 | 28-30 | 30-32 | 32-34 |
| Hips (US Inches) | 35-37 | 37-39 | 39-41 | 41-43 | 43-45 |
| Unisex Hoodie | S | M | L | XL |
| Body Length (US Inches) | 26.75 | 28 | 29.5 | 31 |
| Chest (US Inches) | 22.25 | 23.5 | 24.5 | 25.5 |
| Sleeve Length (US Inches) | 25 | 25.5 | 26 | 26.5 |