With enough sky to witness multiple weather events simultaneously—from one perch—Montana is an amphitheater for appearances of all sorts. Make your entrance into the fold in the classic Western style and easy-breathing tech of Simms’ Big Sky SS Shirt. This Short Sleeve standard comes equipped with the right blend of wicking prowess, UPF30 sun protection, and a plush fabric mix that feels like cotton. Stow a license internally and keep sunglasses safe in the left chest pocket, while staying cool and collected via a vented mesh-lined back panel that breathes with aplomb. 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.