Alpinestars GP Plus R V4 Rideknit Leather Jacket Review 2026

The GP Plus R V4 Rideknit Leather Jacket is engineered for maximum freedom of movement at speed. 1.3mm Race grade leather forms the primary chassis, and RIDEKNIT technology on the inner arms brings a material that combines high abrasion and tear resistance with genuine mechanical stretch and superior breathability — delivering about 9% less weight than a traditional leather accordion panel while increasing stretch performance to around 30% elongation and improving tear resistance by 300% over HRSF and cut resistance by 600% over leather. Alpinestars A-CS Plus composite stretch technology panels on the torso further extend comfort and breathability in the key movement zones.

Dual density DFS shoulders handle friction control alongside Nucleon Flex Plus CE Level 1 shoulder armor for impact protection. A Sport fit with pre-curved arms keeps the jacket optimised for the riding position, and extensive technical stretch panels under the arms, on the inner arms, and around the neck give an optimised fit across the full range of movement. A mesh liner handles internal comfort, and internal pockets accommodate a back protector or split chest protector. Tech-Air 5 and Tech-Air 3 Ready compatibility allows airbag system integration. Hook and loop neck and wrist closures and a 3/4 waist zip connection for compatible Alpinestars trousers complete the practical spec. CE certified to CE Category II EN17092-3:2020 AA Class.

Who is the Alpinestars GP Plus R V4 Rideknit Leather Jacket aimed at?

The GP Plus R V4 Rideknit is aimed at track day riders and advanced sport road riders who want the highest specification of race-derived leather jacket performance. At £629.99, it’s a premium track and road leather jacket investment for those who want RIDEKNIT material technology and comprehensive Tech-Air compatibility.

Specifications:

– CE certification: Category II EN17092-3:2020 AA Class
– Leather: 1.3mm Race grade
– Inner arms: RIDEKNIT technology
– Stretch panels: A-CS Plus composite on torso
– Shoulder protection: DFS dual density plus Nucleon Flex Plus Level 1
– Elbow protection: GP Lite armor
– Tech-Air: 5 and 3 Ready
– Fit: Sport, pre-curved arms
– Localized perforation: Chest and sides
– Closure: Hook and loop neck and wrist, 3/4 waist zip
– External pockets: 2 zippered side pockets
– Internal: Mesh liner, back protector and split chest protector pockets
– Price: £629.99

The GP Plus R V4 Rideknit Leather Jacket is a properly premium race-derived sport jacket that uses material technology — RIDEKNIT and A-CS Plus — not found in standard leather alternatives. The combination of Race grade leather, DFS shoulders, Nucleon Flex Plus armor, and comprehensive Tech-Air compatibility makes for one of the most comprehensively specified leather jackets in the Alpinestars range.