There’s a new name making waves in British activewear, and it’s not whispering. It’s Seissense – pronounced “Sea Sense” – and it’s paddled into the market with all the subtlety of a thunderclap in a yoga studio.
Aimed squarely at shaking up the overly saturated, underwhelming world of performance clothing, Seissense opened its shop online this week with a 50+ piece collection that marries sleek design with responsible manufacturing.
Not content with turning heads, Seissense has set its sights on turning the tide.
This isn’t just another brand flogging leggings and Lycra. After two years of development, Seissense enters the fray offering garments that don’t just stretch and breathe – they stand for something.
The collection is built across four considered pillars: Essentials for daily training and lounging, Seasonal Drops featuring hand-illustrated prints, Active Swim designed for real movement in the water (SPF 50+ included), and a Lifestyle Capsule built for the between-times: travel, recovery, and that post-spin espresso.
Minimalist, tonal, and whisper-soft, these are clothes designed not just to be worn, but lived in. “We’re incredibly excited to launch Seissense,” the team shared.
“After years of careful planning, design, and refinement, and overwhelming early interest in select styles, we think we have truly created the ultimate activewear brand.”
Of course, anyone can make claims. What Seissense offers is proof.
All pieces are crafted with technical precision, from Fuze Tech – a chemical-free, bacteria-busting solution that keeps clothing fresh – to collagen-infused fabrics that promise to be softer on your skin than your therapist.
The entire line is proudly PFAS-free, sidestepping the so-called “forever chemicals” that have quietly infiltrated other performance wear.
And yes, everything is produced in OEKO-TEX® and B Corp-certified facilities, ensuring workers are paid properly and the planet doesn’t pay the price.
The company name – a blend of ‘sense’ and ‘essence’ – reflects this dual commitment to design integrity and social responsibility. “It was impossible to find activewear that looked great, performed well, and was also genuinely kind to both the planet and to those wearing it, so we decided to make it ourselves,” said the team.
And if you’re thinking, well that all sounds a bit too squeaky clean, don’t worry – Seissense isn’t just about virtue-signalling in a sports bra. Every purchase sends £1 to Ripples Africa via Nourish Fund UK, helping build water wells in Malawi. That’s not branding. That’s impact.
As for style? The core collection sticks to a refined palette of six signature colours. Think understated, not Instagram-influencer-on-a-hike. These are pieces that earn their place in your wardrobe, not just your laundry pile.
Launched exclusively already online on Monday, 2nd June, Seissense is already teasing future drops – including resortwear and even a kids’ range – later this year.
Activewear has become a parade of the predictable. Seissense, with its purposeful approach and polished execution, is here to remind us that performance and principle can – and should – co-exist.
Whether you’re sprinting, stretching, or sipping oat lattes in the aftermath, this is kit that does more than keep up. It leads.
Shop Seissense now at https://seissense.com/
