i.Fiv5 - Winter Power Collection

Our experts have further developed and perfected our line of equipment geared towards sub-zero exercise.

Running, fatbiking, cross-country skiing, hiking: stay active 365 days of the year while braving nature's fiercest elements.

Men's sleeveless black jacket

On Base (Layers)

They fit like a second skin and always go to bat when it comes to keeping you warm. Our faves: breathable knitted fleece and technical merino wool.

Merino camouflage suit for men at Simons
The electric blue fleece jacket for men at Simons

Super soft jerseys, lightweight microfibres, and stretch fabrics with reflective details: make our essentials your fundamentals this season.

i.FiV5: Our Top Categories

The i.FiV5 Mat

Your goals are our priority.

Get your stretches and yoga poses down pat with the new i.FiV5 exercise mat.

The yoga mat and its strap by i.FiV5 at Simons
The favorite sports brands of i.FiV5 at Simons

Find emerging, totally on-trend collections at i.FiV5! Every single thing you find here has been dutifully selected for its careful attention to detail, its fearless approach to fashion, or its mastery of streamlined design.

white background striped border

Untethered by the limits of traditional training gear, Vuori is the future of superior-quality performance wear.

Vuori's The Rise The Shine sports t-shirt available at Simons
Reigning Champ

Location: Vancouver, BC
Philosophy: a respect for detail
and a mastery of simplicity.
What they offer: durable construction
and unique, unbeatably comfy materials.

Reigning Champ orange long-sleeve sports t-shirt at Simons

In-Demand Brands

Shop by activity


On-Trend Activewear

Performance, adventure, adrenaline—welcome to the high-octane world of i.FiV5 for men. Discover our activewear section where we welcome today's top labels as well as our highly competitive private capsule collections.