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Of all the activewear inventions, seamless gym leggings have to be the one we're most indebted to. Why? Because, instead of being made from fabric sewn together, like traditional gym leggings, seamless leggings are knit together in a circular fashion creating a one-piece legging that's free from seams, zips and drawstrings. The result? Max comfort, zero chafe and no digging in at the waist. Sign us up. Seamless gym leggings also tend to be super flattering, giving you a sculpted silhouette with a supportive, high-waist fit. Sounds good? Thought so.

If you're new to the magical world of seamless gym leggings then here's a couple of things to consider when searching for your perfect pair. Fabric - do you want a lightweight second skin or locked in supportive feel? Lighter materials are often great for runs and allow for a full range of motion in agile classes, while the compression and core support of thicker styles are great for weight training sessions. The best seamless gym leggings will offer sweat-wicking properties, four-way stretch and compression as standard.

As for the best brands to head to for seamless styles, we've done all the legwork for you. Scroll on for the 15 best pairs to shop now. If you have them in every colour of the rainbow already, we're not judging if you add to your collection – they're just that comfy.

Why buy: These new training leggings are sweat-wicking, high waisted, and made with 4-way stretch. We love the thick, supportive waistband and the fuss-free design.

USP: Comfy, supportive, everyday black seamless leggings.

Why buy? TALA is the industry insider's worst kept secret - its stylish, flattering, performance forward pieces are always in high demand. The brand is a pro in seamless design, as these leggings demonstrate with a thick, compressive feel that feels sculpted and secure.

USP: Stylish pastels in a mix and match set exclusive to ASOS.

Why buy: Gymshark's WTFlex collection is just like the famous Flex range you know and love, just with added fun patterns. With a well-cut seamless high-waisted design, great moisture management and additional mesh for ventilation, these are an absolute winner for summer workouts.

USP: A great buy for sweaty workouts thanks to the added ventilation.

Why buy? These seamless leggings mean business - a supportive compression fit and sweat-wicking fabric means these will be your new go-to for strength training sessions.

USP: Slinky fabric for a second-skin fit.

Why buy? These ankle-length sports tights are designed in fast-drying functional fabric to help keep you cool and dry while exercising.

USP: The price - great leggings for under £20. Bingo.

Why buy? The Upside is famous for chic, modern fit kit so expect premium fits and materials. This design is breathable, lightweight, and moisture-wicking.

USP: A luxe feel and finish thanks to the ribbed texture.

Why buy? Arket's sportswear is seriously underrated - visit this high street hero for luxe activewear that punches above its price tag. These seamless yoga leggings are the piece to snap up, sharpish.

USP: Breathable, seamless leggings made of recycled materials that are only £35 – seems too good to be true.

Why buy? If you want a simple all-rounder, H&M also have these minimal seamless gym leggings that are great for yoga or lounging. We love the faded dusty rose colour, too.

USP: Again, it's got to be the price - these are the pair to buy if you're looking for great gym leggings on a budget.

Why buy? Adidas' sporty matching set is made with Aeroknit fabric, ensuring your comfiest fit. These are high rise with a thick supportive waistband, and come in a 7/8 crop.

USP: Can't go wrong with an Adidas set - and we're sold on the soft knit.

Why buy? These sky-blue beauties are part of the 6th collection Reebook has designed in partnership with Victoria Beckham. They've got sculpting, stretch fabric and a ribbed high rise waist.

USP: Part of a trendy matching set from a buzzy designer collab.

Why buy? Kimjaly's yoga design team created these to be ultra-soft, lightweight, and flexible, so you can perfect your poses comfortably. Nearly 900 customers have given these leggings a glowing five star review, which is great to see given the price.

USP: Great quality at a reasonable, mid-range price.

Why buy? We love these seamless gym leggings with some added pizzazz courtesy of MP's colourful orchid hue. But these leggings aren't style over substance - they have a supportive, high-waist fit. Sold.

USP: Great quality at a reasonable, mid-range price.

Why buy? Les Mills aren't just good for your workout, they'll make your seamless leggings, too. Win! These gems come in two colourways – Rich Red and chic Boulder Grey.

USP: Crafted from soft-seamless knit, Les Mills has created a pair of supremely comfy, yet high-coverage, too. We love.

Why buy? Some might argue Gymshark are the kings of seamless gym leggings. There are tonnes to choose from but we love these marl grey Vital leggings. The zoned shading contouring pattern looks striking and the sweat-wicking fabric holds up to any workout.

USP: These provide a truly locked-in, confident feel without compromising on comfort.

Why buy: A fan of hot yoga? Say hello to Superdry's Flex seamless leggings with special cooling technology fabric. These babies ensure you stay dry and comfy. Namaste.

USP: A blend of ultra flexible material and temperature regulation make these a perfect yoga buy.