The long-sleeve Big Sky — Montana western styling over a genuinely technical shirt. UPF 50+, a vented mesh-lined back panel, and the two-pocket layout that makes it work on the water rather than just look right off it.
On western rivers this is the more useful of the two Big Sky shirts. Forearms are where most anglers actually burn, and a long sleeve you can push up beats a short sleeve you cannot pull down.
Specifications
| Fabric | 57% polyester / 40% nylon / 3% CDPET |
|---|---|
| Weight | 98 gsm — light |
| Sun protection | UPF 50+ |
| Back | Vented mesh-lined panel |
| Pockets | Two chest — accessory loop in the right, sunglass stowage in the left |
| Styling | Classic western |
| Care | Machine wash and dry |
At 98 gsm this is a genuinely light shirt — lighter than most people expect from something with a collar and buttons. Combined with the vented back, it stays wearable through the hottest part of a July afternoon.
Sizing
| Size | Chest | Neck | Sleeve |
|---|---|---|---|
| S | 36–38" | 15.5–16" | 33–34" |
| M | 39–41" | 16–16.5" | 34–35" |
| L | 42–45" | 16.5–17" | 35–36" |
| XL | 46–48" | 17.5–18" | 36–37" |
| XXL | 49–51" | 18.5–19" | 37–38" |
| 3XL | 52–54" | 19.5–20" | 37–38" |
Body measurements, not garment. Simms publishes no fit description and no runs-small warning for this shirt. Current pricing is on the selector above.
Simms does not publish roll-up sleeve tabs on this shirt, so if that feature matters to you, ask us before ordering and we will check the current season's build.
Related: the Big Sky SS is the short-sleeve version in the same fabric, and the Big Sky Tech LS is a lighter, more technical build — 93% nylon / 7% spandex at 111 gsm with DWR and a sunglass chamois built into the hem. Both stocked.
Care: machine wash and dry. No fabric softener.
Ed's Fly Shop, 432 E Main St, downtown Montrose, Colorado.