Alpinestars Supertech R Motorcycle Boots

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

color

black

black/dark grey (charcoal)

black/grey/red

black/white

black/white/pink

black/white/red

black/yellow/red

red/black/white

yellow/black

Size

Clear

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Alpinestars Supertech R Motorcycle BootsAlmost every component of the Supertech R Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further.Features:Main upper material constructed using microfiber for optimum abrasion resistance, while also delivering high levels of flexibility.New front flex area for improved impact abrasion while also ensuring the natural front and back.New front flex area increases ventilation and airflow for additional breathability.Redesigned rear bellow in stretch microfiber for improved natural front and back movement.Redesigned top gaiter in microfiber material with TPU over injection for enhanced prehensility.New synthetic microfiber panel on medial side for enhanced abrasion resistance and improved feeling when in contact with the bike.New TPU shifter for increased protection on lower medial side.New TPU shin plate has been redesigned for greater impact absorption performance, thus improving abrasion resistance in a key area.New replaceable shin slider for additional abrasion resistance.New TPU stretch panel design with zip for an easier entry and exit and a closer, more optimized fit.Hook and loop closure secures that the zip remains in position.Micro adjustable ratchet closure on top of boot for an optimized fit.Replaceable co-injected TPU/aluminum toe slider with an easy screw system that protects the toe area against abrasion resistance.New replaceable heel plate slider design offers increased sliding performance and protection in the case of crash.Sole constructed using a lightweight rubber compound for excellent grip on the pegs.Separate, internally updated bio-mechanical inner boot made by 3D mesh material for greater structure, thus improving rider comfort.Inner boot is equipped with a new external toe area with a soft TPU reinforcement for superior impact protection and additional ankle padding for greater protection, stability and cushioning during natural movement of the foot.Protective footwear for motorcyclists (EN 13634:2017)