ThermiQ Technology
Other brands use graphene fleece including, for example, BARE Velocity and BARE Reactive, and we can’t deny that they seem to perform well.
Ultimately, this heat-distribution system equals enhanced warmth in thinner suits. While Apeks claims a 2 C temperature increase, this likely refers to skin surface temperature rather than core body temperature.
At its heart, the proposition of a lower-profile 5 mm suit that offers the same protection as a 7 mm is nice. The sustainable construction using limestone neoprene and recycled materials adds environmental appeal without compromising performance.
The flipside of that, and confirmation of how well it works, is the struggle to flush your suit before getting out of the water.
The heat distribution technology becomes noticeable during dives, with warmth spreading more evenly throughout the body compared to standard 5 mm suits. While not quite matching a quality 7mm wetsuit in identical conditions, the difference proved smaller than expected—testers were comfortable and warm throughout extended dives where conventional 5 mm suits would show thermal limitations.
Construction and Comfort
The double seals at wrists and ankles represent a significant upgrade over standard construction, making it feel like a semi-dry wetsuit. The single zipped thigh pocket provides adequate storage while maintaining the suit’s streamlined profile.
Apeks Thermiq also comes in a thicker 8 mm, referred to as 8 mm ADV (advanced). We tested the 8mm ADV women’s fit. Apart from added warmth, the ADV adds an extra pocket to each thigh and a built-in hood, also lined with the same fleece graphene lining.
I was pleasantly surprised by the fit of the hood around my face. Due to the hood, the zip closure is now across the top of the chest, similar to some surfing wetsuits.
As is to be expected with a thicker wetsuit, the 8 mm was a little tricky to get on, and getting to the toilet straight after a dive wasn’t easy. Despite the initial struggle to get into the suit, underwater the Apeks ThermiQ 8mm was really comfortable and I felt the front zip helped to keep me in a comfortable and streamlined position.
Environmental Impact
The ThermiQ’s environmental credentials include a limestone neoprene base that eliminates petroleum alternatives, plus integration of recycled car tires and bottle materials. For environmentally conscious divers, these features provide gear choices that may align with their values without compromising superior performance.
Mobility and Versatility
The 5 mm thickness provides significant mobility advantages compared to thicker alternatives. Technical diving skills, underwater photography positioning, and extended swimming remain comfortable throughout long dives. This versatility makes the suit appealing for divers whose activities span different diving styles and conditions.
Price/Quality Ratio
For active divers who encounter variable conditions or prioritize thermal comfort, the Apeks ThermiQ provides compelling value.
Do we recommend the Apeks ThermiQ 5 mm wetsuit?
However, if you’re primarily diving in consistently warm water above 75 F (24 C) or regularly encounter water below 55 F (13 C), other options might better match your needs. For divers who appreciate innovative technology, sustainable construction, and versatile performance, the Apeks ThermiQ 5 mm offers superior warmth plus environmental responsibility.
Specs & Features
| Materials | Sustainable limestone neoprene with recycled materials |
|---|---|
| Thickness | 5 mm |
| Seams | Liquid-sealed |
| Sizes | XS–3XL for men; XS–2XL for women with long and short lengths available |
| Thermal Technology | Graphene fleece lining with heat distribution system |
| Construction | Super-stretch limestone neoprene |
| Seals | Double wrist and ankle seals |
| Environmental Features | Recycled car tire and bottle materials |
| Additional Features | Single zipped thigh pocket, non-slip shoulders |
