Product Price Weight (oz) Stack Height (mm) Drop (mm) Sole Stiffness Spike Pattern Upper Material
adidas Zenboost
US
£62.48 7.41 23 6 Textile

The adidas Zenboost is a cushioned road-running shoe with a responsive BOOST+ midsole, breathable textile upper, and durable rubber outsole. It suits everyday runners, gym users, and longer easy runs who prioritize comfort over race-day minimalism.

★ Ideal for

At 7.41 oz, the Zenboost is relatively light for a cushioned trainer, but its BOOST+ midsole and 23 mm stack make it better suited to lightweight everyday running than to the lightest racing-flat category.

PUMA Fast-FWD Nitro Elite 2
US
£146.99 4.6 31 8 ULTRAWEAVE

The PUMA Fast-FWD Nitro Elite 2 is a lightweight short-distance racing shoe with NITROFOAM Elite cushioning and a carbon-fibre PWRPLATE for responsive propulsion. Its low stack and aggressive, snappy ride suit neutral runners targeting fast 5K and 10K races or interval sessions.

★ Ideal for

At 4.6 oz with a 31 mm heel stack, 8 mm drop, lightweight ULTRAWEAVE upper, and carbon-fibre PWRPLATE, this is specifically suited to runners seeking one of the lightest road racing flats for fast 5K and 10K efforts.

ASICS Hyper Speed 6
US
£95.53 5.6 21 heel / 15 forefoot 6 Double-layered mesh with welded overlays

The ASICS Hyper Speed 6 is a lightweight, flexible racing flat with a low 21 mm heel and 15 mm forefoot stack. Its breathable mesh upper and roomy fit make it suitable for speed workouts, road racing, and runners who prefer a responsive, minimally structured shoe.

★ Ideal for

At 5.6 oz with a 21 mm heel stack, 15 mm forefoot stack, and flexible racing-flat construction, the ASICS Hyper Speed 6 is a strong option for runners seeking one of the lightest racing flats available.