Manufacturer	2XS(cm)	XS(cm)	SM(cm)	MS(cm)	MD(cm)	ML(cm)	LG(cm)	XL(cm)	2XL(cm)	3XL(cm)	4XL(cm)	5XL(cm)
Shoei	51-52	53-54	55-56	xx-xx	57-58	xx-xx	59-60	61-62	63-64	65-66	xx-xx	xx-xx
AGV Pista GP R/Corsa R/Veloce S	xx-xx	53-54	55-56	57-58	xx-xx	59-60	60-61	61-62	63-64	xx-xx	xx-xx	xx-xx
AGV Pista K1/K3/K5	xx-xx	53-54	55-56	57	xx-xx	58	59-60	61-62	63-64	xx-xx	xx-xx	xx-xx
Suomy	xx-xx	53-54	55-56	xx-xx	57-58	xx-xx	59-60	61-62	65-64	65-66	xx-xx	xx-xx
HJC	51-52	53-54	55-56	xx-xx	57-58	xx-xx	59-60	61-62	63-64	65-66	67-68	69-70
ARAI	51-52	53-54	55-56	xx-xx	57-58	xx-xx	59-60	61-62	63-64	65-66	xx-xx	xx-xx

EURO	ALPHA	USA	Chest(cm)	Waist(cm)	Hips(cm)	Height(cm)	Crotch(cm)	Sleeves(cm)
42	XS	32	82/86	70/74	84/88	163/166	76/77	55/56
44	S	34	86/90	74/78	88/92	166/169	61-62	65-66
46	S	36	90/94	78/82	92/96	169/172	79/80	57/58
48	M	38	94/98	82/86	96/100	172/175	80/82	58/59
50	M	40	98/102	86/90	100/104	175/178	82/83	59/60
52	L	42	102/106	90/94	104/108	178/181	83/84	60/61
54	L	44	106/110	94/98	108/112	181/184	84/85	61/62
56	XL	46	110/114	98/102	112/116	184/187	85/86	62/63
58	XL	48	114/118	102/106	116/120	187/188	86/87	62/63
60	2XL	50	118/122	106/110	120/124	188/189	87/88	63/64
62	3XL	52	122/126	110/114	124/128	189/190	87/88	63/64
64	4XL	54	126/130	114/118	128/132	190/191	88/89	64/65

Manufacturer (Circumference)	XS(cm)	SM(cm)	MD(cm)	LG(cm)	XL(cm)	XXL(cm)	3XL(cm)	4XL(cm)
Dainese Men's (cm)	19.1	20.3	21.6	22.9	24.1	25.4	26.7	xx.x
Dainese Women's (cm)	15.2	16.5	17.8	19.1	xx.x	xx.x	xx.x	xx.x
RS Taichi Men's (cm)	xx.x	22.0	23.0	24.0	25.0	26.0	27.0	28.0
RS Taichi Women's (cm)	xx.x	15.0	16.0	xx.x	xx.x	xx.x	xx.x	xx.x
Scorpion Men's (cm)	12.7	15.2	17.8	20.3	22.9	25.4	27.9	xx.x
SPIDI Men's (cm)	19.8-20.6	20.6-21.4	21.4-22.2	22.2-23.0	23.0-23.8	23.8-24.6	24.6-25.4	xx.xx
SPIDI Women's (cm)	19.0-19.8	19.8-20.6	20.6-21.4	21.4-22.2	22.2-23.0	xx.x	xx.x	xx.x
Alpinestars Men's (cm)	xx.x	19.1-21.6	20.3-21.6	21.6-22.9	22.9-24.1	24.1-25.4	25.4-27.9	xx.x

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Alpinestars Nucleon Kr-1 Cell Back Protector Transparent Smoke Black Red

Nucleon KR-1 Cell Back Protector

The Nucleon KR-1 Cell back protector incorporates race-orientated back protection. Featuring hard plastic lattice structured shell, this innovative back protector is uncompromising in safety and performance. Ergonomically profiled for sport riding with superb ventilation, the Nucleon KR-1 Cell is extremely lightweight and breathable.

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$189.95

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You can return any new, unused and unaltered item within 30 days of delivery of your item. We will issue a full refund via your original payment method. Return Policy.

Destination	Delivery type	Delivery time	Cost
US	Standard Ground delivery	2-3 Working days	FREE
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Nucleon KR-1 Cell Back Protector

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