Shoppers who start comparing barefoot sneaker soles across a single brand’s lineup quickly notice that not every sole is built the same way. groundies organizes its sneakers around a family of TrueSense sole variants, each shaped for a different kind of step. Looking at how GO1, GS1, Active, Street, and Lima soles differ in base thickness, tread depth, and upper material makes it far easier to tell one model from another.
Understanding Groundies’ TrueSense Sole Technology
groundies builds its footwear around a zero drop profile, meaning the heel and forefoot sit at the same height rather than being raised at the back. The TrueSense name covers several distinct sole constructions rather than one single design. Each variant keeps the anatomical, wide-toe-box fit the brand is known for, but the base thickness, tread pattern, and finish shift depending on the shoe and the activity it targets.
That variation is exactly why barefoot sneaker soles compared side by side across the groundies catalogue can look and feel noticeably different. A sole built for a casual city walk is not constructed the same way as one meant for structured training. Reading a product page with that distinction in mind makes it clearer what is actually being offered under each model name.
TrueSense GO1: Direct Ground Contact and Soft Movement
The TrueSense GO1 sole appears on sneakers such as the groundies Nova GO1 and the Cricket. On the Nova GO1, it combines a 3 mm base with a 3.3 mm tread, a thinner, flatter build than several of the other TrueSense variants in the range. The Cricket pairs a flexible version of the same GO1 sole with an ergonomic shape and a flat base, designed for light, sensory steps through the day.
On the Nova GO1, the sole sits beneath soft nubuck and suede leather uppers, with a breathable OnSteam lining regulating temperature inside the shoe. That combination of materials positions GO1 as one of the softer-feeling options whenever barefoot sneaker soles get compared within the groundies catalogue.
TrueSense GS1: Balanced Comfort with Distinct Style
The GS1 sole shows up on the Nova GS1, the Lima, and the Panama. On the Nova GS1, groundies describes the sole as flat, paired with an anatomical toe box and quality leather, while keeping the brand’s minimalist shape. The Panama uses the same GS1 construction and is offered in four different design options, giving shoppers more than one look built on the identical sole platform.
The Lima also carries a GS1 sole, described as supporting direct ground contact on a lightweight canvas sneaker meant for warm-weather, urban wear. Compared with GO1, the GS1 family keeps the same flat, cushion-free approach but spreads it across a wider range of upper styles, from leather to canvas.
TrueSense Active: Performance and Flexibility for Sports
The TrueSense Active sole is built for a different category of use. It appears on the Active Knit, where it pairs with a seamless knitted upper made from flexible polyester, including a recycled portion of the material. The Active sole on this model uses a 2 mm base and a 2.5 mm tread, the thinnest combination mentioned across the lineup.
That thinner build sits close to the GO1 specification used on the Nova, though the knitted upper sets the Active Knit apart in feel. The Active Knit is positioned for training, travel, and everyday life, offering freedom of movement rather than a cushioned ride. As a result, this variant leans toward activity-oriented footwear rather than purely casual wear.
Street and Lima Soles: Specialized Options Beyond the Core Range
Beyond GO1, GS1, and Active, groundies also uses a TrueSense Street sole on the Zurich sneaker. This sole is described as flat, supporting a natural stride and activating foot muscles without cushioning. The Zurich pairs the Street sole with a wide, anatomical fit and clean nubuck uppers, aimed squarely at urban wear rather than sport.
The Lima, already noted for its GS1 sole, is worth examining for its construction rather than its tread numbers. It is built as a minimalist canvas sneaker, light and flexible, and marketed for warm days and casual outings. Together, Street and GS1 round out the options for anyone comparing barefoot sneaker soles built for walking rather than training.
- The GO1 sole uses a 3 mm base with a 3.3 mm tread and appears on the Nova GO1, with a flexible version also fitted to the Cricket.
- The GS1 sole appears on the Nova GS1, the Lima, and the Panama, pairing a flat, cushion-free build with leather or canvas uppers depending on the model.
- The Active sole on the Active Knit uses a 2 mm base with a 2.5 mm tread and pairs with a knitted, partly recycled polyester upper for training and travel.
- The Street sole on the Zurich is described as flat and cushion-free, built to support a natural stride during city walking.
- Uppers vary by model, including nubuck, suede leather, canvas, and knitted recycled polyester, depending on the sole and intended use.
Matching Activity to the Right Groundies Sole
Looking across the lineup, a pattern emerges in how sole thickness lines up with intended use. The thinner Active sole appears on sneakers meant for movement-heavy days, while GS1 and Street soles show up on walking-focused models like the Lima and Zurich. GO1 sits in between, built for everyday wear with an emphasis on sensory ground contact.
None of the TrueSense variants add cushioning, which keeps them consistent with the brand’s zero drop, barefoot fit approach. Instead, the differences come down to base thickness, tread depth, and the upper material wrapped around each sole. For anyone weighing barefoot sneaker soles across the groundies range, those three details remain the clearest way to tell one variant from another.
The TrueSense lineup offers distinct options suited to different walking and training patterns throughout the day.