Alpinestars GP Plus R V4 Rideknit perforated Motorcycle Leather Jacket

The GP Plus R V4 RIDEKNIT® Leather Jacket is optimized for superior freedom of movement and rider comfort, and features extensive race-derived features and materials including a dedicated ‘Sport’ fit with pre-curved arms for maximum riding performance, and race-proven protection on the shoulders and elbows.

Features:

Alpinestars composite stretch technology, A-CS® Plus, stretch panels on the torso for exceptional breathability, comfort, and freedom of movement, as well as delivering a lighter weight and a lower profile than a traditional leather accordion panel (the A-CS® Plus panels are about 9% lighter than leather panels). Another key advantage of using A-CS® Plus is its superior stretch performance; A-CS® Plus has about 30% elongation, and offers an increase in tear resistance of 300% compared to HRSF (Hyper Resistant Stretch Fiber), and an increase in cut resistance by 600% versus leather
1.3 mm ‘Race’ grade leather construction for the optimum blend of abrasion resistance and comfort
RIDEKNIT® engineered inner arms; RIDEKNIT® combines high abrasion and tear resistance with high flexibility, comfort and mechanical stretch while still delivering superior comfort and high levels of breathability
extensive technical stretch panels under the arms, on the inner arms, and around the neck for an optimized fit
dual density DFS shoulders for superior friction control
GP Lite elbow armor for impact protection in a key area
Nucleon Flex Plus shoulder armor for superior impact protection
Tech-Air® 5 and Tech-Air® 3 Ready
localized perforation zones on the chest and sides for maximum airflow
stretch under the arms and on the inner arms for an optimized sport fit
stretch, soft feel and ergonomic collar for superior rider comfort
hook and loop neck closure with the large built-in flap for a secure closure
ergonomic hook and loop cuffs with a zippered sleeve on the forearm for ease of use
two zippered external side pockets for practical and secure storage
mesh interior comfort liner with pockets to accommodate a back protector or a split chest protector
cut longer on the back for greater coverage in the riding position
3/4 waist zip for a secure connection with Alpinestars pants
hook and loop adjustable waist for an optimized fit

Specifications:

GP Lite elbow protectors, Level 1
Nucleon Flex Plus shoulder protectors, Level 1, Category II (EN 1621-1:2012)
prepared for back protector (not included)
prepared for split chest protector (not included)
PPE protective apparel for motorcycle use - EN 17092-3:2020 Class AA

EU declaration of conformity:

Download

Color:	black/white
Size:	50
Sport:	Motorcycle
Tops Type:	Jackets
Features:	perforated
Gender:	Men
Material:	Leather
Season:	Summer
Application area:	Sports, Urban / City
Protection class (certification):	Protection class AA
Material composition:	39% cowhide, 25% buffalo leather, 23% polyester, 10% polyamide, 3% elastane; Lining: 89% polyester, 9% polyamide, 2% elastane (contains non-textile parts of animal origin)

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Size table

Size table for Alpinestars GP Plus R V4 Rideknit perforated Motorcycle Leather Jacket:

Measurements in:

inch

Size	Chest (cm)	Waist (cm)	Outer Arm (cm)	Body Height (cm)
44	86 - 90	72 - 76	54 - 55	164 - 168
46	90 - 94	76 - 80	56 - 57	168 - 172
48	94 - 98	80 - 84	58 - 59	172 - 176
50	98 - 102	84 - 88	60 - 61	176 - 180
52	102 - 106	88 - 92	62 - 63	180 - 184
54	106 - 110	92 - 96	64 - 65	184 - 188
56	110 - 114	96 - 100	65 - 66	188 - 192
58	114 - 118	100 - 104	67 - 68	192 - 196
60	118 - 122	104 - 108	67 - 68	192 - 196
62	122 - 126	108 - 112	68 - 69	196 - 199
64	126 - 130	112 - 116	68 - 69	196 - 199
66	130 - 134	116 - 120	68 - 69	196 - 199
68	134 - 138	120 - 124	68 - 69	196 - 199

How to measure your height:

1 Body height

To determine your exact height, stand on a flat surface without shoes, preferably with your back against a straight wall. Ensure that your head, shoulders and bottom are lightly touching the wall. Use a tape measure or folding rule and measure vertically from the highest point of your head (crown) to the sole of your foot. A second person can help you hold the tape measure straight and read the exact height.

2 Chest circumference

To measure your chest size correctly, place the measuring tape horizontally around your upper body at the fullest part of your chest. Ensure that the tape measure is not too tight and runs parallel to the floor. Breathe in and out normally to obtain a realistic measurement. It may be helpful to take the measurement in front of a mirror or ask a second person for assistance.

3 Waist circumference

The waist circumference is measured at the narrowest point of your torso – usually just above the navel. Ensure that the tape measure is horizontal and fits snugly, but does not cut into the skin. Breathe calmly and maintain a natural posture to obtain an accurate result.

4 Hip circumference

To measure your hip circumference, stand upright and wrap the tape measure horizontally around the widest part of your hips and buttocks. Ensure that the tape measure is flat and parallel to the floor. A second person or a mirror can help to take an accurate measurement.

5 Inside leg length

The inside leg length is measured along the inside of the leg from the crotch to the sole of the foot. Stand up straight, preferably barefoot. If possible, ask someone else to help you to obtain a more accurate measurement. A practical method is to measure a pair of trousers that fit well: Lay them flat and measure the inside leg length from the crotch to the bottom hem.

Reviews

2 out of 2 ratings

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2 reviews

15 May 2026 14:40

Beautiful looking Jacket - Get all the looks and enquiries.

Ordered the Black/White as the only variant available in NZ is Black/Neon. I'm 5'10", 87kgs - ordered up a size from my usual 54 to 56 as I have a Tech Air 5 plasma underneath. Fits perfectly, I'd say for me this is Road race fit not Track fit. (Not too tight but definitely not saggy) Truly is a looker and so comfortable!

21 August 2025 14:41

Erstklassige Lederjacke!

Habe diese tolle Jacke für meinen Mann gekauft. Das Material dieser Jacke ist der Hammer!!! Super weich ,sehr angenehm zu tragen,top Verarbeitung 👍 Man sollte sie aber eine Größe kleiner bestellen, sie fällt etwas weiter aus ,als herkömmliche Modelle von Alpinestars.