Open your eyes to concrete-free vistas, then kick through the sagebrush toward cool waters in Simms’ Big Sky LS shirt. A Bozeman original, this active button-down comes fully equipped with the right mix of cotton-like feel, UPF30 sun protection, and classic western styling. Features include a vented, moisture-wicking mesh lined back panel that dumps unwanted heat, internal license storage for staying legal, and sunglasses safekeeping in the left chest pocket. Traditional fit comes standard.

• Soft, comfortable wicking fabric, UPF 30 sun protection & classic western styling
• Internal license pocket, accessory loop in right chest pocket & sunglass stowage in left chest pocket
• Vented, mesh lined back panel wicks moisture & promotes air flow

FABRIC TECH: 57% Polyester/40% Nylon/3% CDPET

Size Chart




At Simms, sun protection is a critical component of our sportswear offering. Through a combination of fabric construction, design and finish, we offer a wide range of clothing that features a minimum UPF of 30 (very good) up to UPF of 50 (excellent). UPF stands for Ultraviolet Protection Factor and indicates how much of the sun's UV radiation is absorbed. A fabric with a rating of 50 will allow only 1/50th of the sun's UV rays to pass through. This means the fabric will reduce your skin's UV radiation exposure significantly. All of our UPF finishes last the life of the garment, an industry standard of 30 washings.