Sena Surge Open Mesh Helmet

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

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Sena Surge Open Mesh Helmet The Sena Surge Smart Helmet balances classic 3/4 design with cutting-edge Mesh Bluetooth communication technology. Its composite fiberglass shell coupled with EPS lining ensures both safety and comfort. The helmet integrates seamlessly with Sena’s communication unit, featuring HD speakers and a microphone, enabling riders to enjoy music, follow directions, and converse with fellow riders. The Mesh intercom technology offers a stable and flexible means for intercom message routing, with notable improvements to the Bluetooth algorithm. The product employs two Mesh settings for connectivity: Multi-Channel Open Mesh Intercom and Group Mesh Intercom. With Open Mesh, engagement is a breeze—a single-button press connects the Surge Helmet to any Sena Mesh headset within a mile. This feature is the first of its kind, with a Mesh Intercom Channel System that allows riders to toggle among nine channels while in Open Mesh mode. For conversations that require privacy, the helmet’s Group Mesh Intercom mode is ideal. It enables up to 24 participants to communicate in a private group over the same range as Open Mesh. Features: A 3/4 style helmet with 3 shell sizes, integrated Bluetooth with discrete brow-mounted (boomless) microphone, and premium fiberglass construction Paint, graphics, and branding add to the premium feel Fiberglass composite construction built for impact protection and durability SM, MD-LG, and XL-2XL shell breakdown 3/4 design with removable snap-on sun peak Two tone color schemes mix gloss and matte finishes Integrated comm unit, mic and HD speakers Includes helmet, helmet bag, USB-C charging cable and quick-start guide DOT certified Removable and washable interior Double D-ring closure Bluetooth Specifications: Bluetooth 5.2 Intercom Mesh Intercom 3.0 Range 1 mile in open terrain Open Mesh: 6 channels Virtually unlimited number of participants Group Mesh 24 participants Advanced Noise Control Talk Time : 21 hours Charging Time: 2.5 hours 2 year warranty

color

Matte Black/Black

White/Matte Black

Size

2XL