Sigma Sports Guide: Must Have Triathlon Products
The triathlon season is upon us and with races coming thick and fast many triathletes are looking for that next innovation to ensure their season is the best yet. Yes, training is important but when it comes to optimising your performance, whether it be in the water, on the bike or out pounding the pavements, making sure your equipment is not going to slow you down is key. We've taken a look at some of our favourite products for this year that are guaranteed to enhance your training and racing.
Best Multisport GPS Watch - Garmin Epix Pro Sapphire 51mm Multisport GPS Watch
The Garmin Epix Pro 51 Sapphire Multisport GPS Smartwatch combines a rugged, military-tested design with advanced training, performance and health-monitoring features, all showcased on a vibrant 1.4" sapphire AMOLED display.
With up to 16 days of battery life in smartwatch mode and 58 hours in GPS mode, it supports demanding athletes through features like Hill Score, Endurance Score, training readiness, real-time stamina and adaptive daily workouts. Its built-in LED torch enhances night-time visibility, while tools such as PacePro, ClimbPro, race predictions and wrist-based running power help refine race strategy and performance.
Packed with actionable wellness insights and offering Garmin Coach training plans, the Epix Pro 51 delivers a powerful, all-round endurance and lifestyle companion.
Best Short Sleeve Trisuit - Castelli Free Sanremo 3 Short Sleeve Trisuit
The Castelli Free Sanremo 3 Short Sleeve Trisuit is a refined evolution of Castelli’s top-performing trisuit, engineered through CFD modelling to minimise aerodynamic drag with carefully placed seams and aero-optimised ribbed fabrics. Lightweight, breathable materials regulate temperature, with an internal neck pocket for ice on the hottest days, while the Sanremo front opening enhances comfort, ventilation and convenience across all three race stages. Practical details such as flat rear pockets, bonded sleeve endings, Forza2 Stretch legs with silicone grippers and the low-bulk, fast-drying KISS Tri seat pad ensure optimal comfort, mobility and speed, making this trisuit a highly considered choice for performance in temperatures from 15 to 40°C.
Shop the men's Castelli Free Sanremo 3 Short Sleeve Trisuit
Shop the women's Castelli Free Sanremo 3 Short Sleeve Trisuit
Best Wetsuits for Triathletes - HUUB Aegis X 3:3 and 3:5 Wetsuits
The HUUB Aegis X 3:5 Wetsuit brings high-end performance to a more accessible price point, offering outstanding flexibility, buoyancy and fit for open-water swimmers and triathletes. Its upper body freedom and buoyant legs support an efficient, fatigue-reducing stroke, while the X-O Skeleton™ enhances body alignment for improved technique. Carefully chosen neoprene panels optimise performance and comfort, and the Breakaway Zipper™ ensures fast transitions. With refined materials and a design focused on rotational movement, the Aegis X 3:5 delivers a reliable, performance-driven experience in the water.
Designed specifically for women, the HUUB Aegis X 3:3 Women’s Wetsuit delivers exceptional performance for its price. Incorporating technology from HUUB’s top-tier models to enhance speed, flexibility and efficiency in the water. Its Breakaway Zipper™ ensures rapid transitions, while highly flexible neoprene and Rotational Freedom™ panel design promote a natural, unrestricted stroke. The X-O Skeleton™ supports optimal body alignment, and the 3:3 buoyancy system provides balanced lift to reduce fatigue and maintain stability, making it an ideal choice for swimmers seeking comfort, speed and reliable performance.
Best Triathlon Cycling Shoes - Fizik Transiro Hydra Aeroweave Carbon Cycling Shoe
The Fizik Transiro Hydra Aeroweave is a triathlon shoe designed for optimal performance, featuring a second-generation Aeroweave upper and a stiff carbon outsole for efficient pedalling and quick transitions. Its single Velcro strap ensures fast and secure transitions, while the breathable Aeroweave fabric provides lightweight support and comfort, even without socks. The R2 carbon fibre outsole enhances stiffness and cooling airflow, with a cleat position that reduces knee strain. Ideal for demanding triathletes, this shoe excels in every race scenario.
Best Triathlon Helmet - Kask Bambino Pro Evo Helmet
The Kask Bambino Pro Evo Helmet, a favourite in the pro peloton, delivers podium-proven aerodynamics designed to perform in any head position, with a magnetically integrated visor that creates a seamless, drag-reducing interface. Six front micro vents, four rear exhausts and an internal air-duct system provide efficient cooling without compromising speed, while 3D DRY padding and a removable Coolmax liner enhance comfort and hygiene. Finished with a washable, hypoallergenic chinstrap and weighing just 340g (size M), it offers a fast, comfortable and practical solution for time-trialists.
Best Tri Road Helmet: MET Trenta MIPS Helmet
The MET Trenta MIPS Helmet is a lightweight, aerodynamic option ideal for triathletes seeking both speed and safety. Its MIPS-C2 system helps protect against angular impacts, while the double in-mould construction keeps weight low for long, demanding race days. With 19 vents and a design that contacts only 30% of the head, it provides outstanding cooling during hot bike legs, and the Safe-T Orbital fit system offers precise adjustment and ponytail compatibility for a secure, comfortable fit. Optimised for fast group riding with a 7% drag reduction, and equipped with breathable padding, lightweight straps, and reflective detailing, it supports triathletes aiming for performance, comfort, and confidence on the bike.
Best Triathlon Hydration Accessory - XLAB Torpedo Versa Slim Hydration System
The XLab Torpedo Versa Slim Hydration System is a lightweight, aerodynamic solution designed for triathletes seeking fast, integrated hydration. With a 768 ml BPA-free, food-safe bottle and a carbon fibre cage delivering 6 lbs of secure grip, it stays firmly in place even under demanding conditions. The system features a direct-mount design compatible with most aerobar setups, a telescoping computer mount for optimal placement, and includes a straw with bite valve, aero straw retainer, and ventilation features. Weighing just 280 g, it balances durability, convenience, and performance for seamless hydration during races.
Best Women's Triathlon Running Shoes - On Running Women's Cloudsurfer Max Running Shoes
The On Running Women's Cloudsurfer Max Running Shoes are ideal for triathletes seeking long-distance comfort and smooth performance on the run leg. Featuring a double layer of CloudTec Phase® and Helion™ superfoam, they provide maximum cushioning and impact absorption to reduce fatigue after cycling. The breathable mesh upper, flat knit collar, and adaptive eyestays ensure a secure, comfortable fit during high-intensity efforts, while the computer-optimised CloudTec Phase® system delivers a seamless heel-to-toe transition. Lightweight, stylish, and equipped with rubber outsole pads for reliable grip, these shoes help triathletes maintain speed and comfort over long distances.
Swim Essentials
For triathletes, having your swim essentials to hand is key for fast and efficient times in the water, whether training or racing. These typically include a well-fitting swimsuit or wetsuit suited to water conditions, goggles that provide clear vision and stay secure during longer swims, and a swim cap to reduce drag and keep hair contained. Training tools such as pull buoys, paddles, kickboards and fins help develop technique, strength and body position, while accessories like anti-chafe balm, earplugs and a reliable towel add comfort and practicality. Together, these essentials support triathletes in building confidence and speed during the swim leg of their events.
Bike Gear
Bike essentials for triathletes are the core items that ensure efficiency, comfort and reliability during both training and racing. At the heart of this setup is a well-fitted road or triathlon bike, paired with a quality helmet for safety. Triathletes also rely on triathlon bike shoes with compatible pedals for better power transfer, as well as tools like a spare inner tube, tyre levers and a mini pump or CO₂ inflator to handle roadside repairs. Hydration systems—whether bottles or integrated hydration packs—are crucial for maintaining energy, and a bike computer or multisport watch helps track speed, distance and pacing. Together, these essentials equip triathletes to ride confidently and perform at their best on the bike leg.
Run Equipment
Run equipment for triathletes focuses on comfort, efficiency and readiness for the final leg of a race. The foundation is a pair of well-fitted, supportive running shoes suited to the athlete’s gait and terrain, helping maintain form and reduce fatigue after the swim and bike. Lightweight, breathable clothing keeps temperature regulated, while race belts make carrying numbers and small items simple and aerodynamic. Many triathletes also rely on a multisport watch to monitor pace and heart rate, ensuring they manage their effort effectively. Hydration solutions—whether handheld bottles, belts or aid-station planning—help sustain energy, and optional items like elastic laces can speed up transitions. Together, these essentials set triathletes up for a strong, confident run to the finish.
Want to take a look at our latest triathlon products from some of the sport's biggest brands?
