Sheathed in GORE-TEX® 2-layer shell fabric, the Bulkley Jacket’s internals are powered by PrimaLoft® Gold insulation—with the highest warmth-to-weight ratio of any synthetic insulation available. Angler-driven architecture includes bellowed chest pockets designed to hold multiple fly boxes, microfleece-lined handwarmer pockets aimed high on the chest for deep-wade convenience, and bomber YKK® zippers that buck corrosion across contemplative weeks of swing-cast-swing.

• GORE-TEX® 2-layer shell with PrimaLoft® Gold insulation maintains 96% of its warmth when wet and provides the highest warmth to weight ratio of any synthetic insulation available
• 2 bellowed chest pockets designed to hold multiple fly boxes
• Microfleece-lined hand warmer pockets placed high on chest
• Corrosion resistant YKK® zippers

FABRIC TECH: 2-layer GORE-TEX® Shell with PrimaLoft® Gold insulation (100g body / 60g sleeves)

Size Chart




GORE-TEX® Performance Shell outerwear is waterproof, lightweight, durable and breathable. It’s designed to provide excellent, long-lasting performance in a wide range of conditions.


Little Parts from the YKK® Fastening Products Group create The Big Difference for our customers — fastening solutions intelligently integrated with the finished product to provide the highest quality, most durable gear. The Little Parts — zippers, metal buttons and snaps, and Nylon buckles — all earn the YKK® brand. The Big Difference begins with their obsession to ensure that every individual component renders maximum value to the finished whole. That commitment instills quality and value into every product. Simms utilizes fasteners built to withstand the harshest environments and YKK® provides the best solutions to meet those needs. All Simms outerwear features nylon YKK® zippers to minimize corrosion and provide high performing, durable wear.

PrimaLoft® ONE is the highest performing insulation on the market for warmth, water resistance, softness and compressibility. PrimaLoft® ONE is an ultra-fine microfiber insulation that is as warm, soft and lightweight, and is warmer wet or dry than all other insulations.

Ultra-fine fibers form tiny air pockets that trap body heat and keep the cold out. The result is immediate warmth without the bulk. PrimaLoft® ONE Microfibers are engineered for permanent water resistance and create tight surface tension that resists moisture penetration, resulting in an insulation that dries faster than goose down. Ultra-fine fibers mimic the compressibility of goose down and are breathable, allowing moisture vapor to be transported through the fibers and away from the skin.

PrimaLoft® ONE Ultimate Performance, Warmth and Comfort

Excellent Thermally Efficiency

Superior Water Resistance

Dries Faster than Down

Lightweight and Breathable

As Warm, Soft and Compressible as Down

Wind Resistant


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.