-->

Become a VIP and Get Cash Back Today  LEARN MORE  Join NOW for FREE

{"id":4919132520550,"title":"SMITH Optics Portal MIPS Adult Cycling Helmet (Matte White, Medium)","handle":"smith-optics-portal-mips-adult-cycling-helmet-matte-white-medium","description":"You might not be a podium-hungry cyclist, or not crave race day at all for that matter, but that shouldn't hold you back from riding with comfort and protection. Fortunately with the Smith Portal MIPS Helmet you can find the perfect balance between performance, technical features, and comfort for your daily cruises on the trail or pavement. It's packed with a full 18-vents, optimally placed to keep you cool on strenuous climbs, plus AirEvac ventilation system that boosts airflow under your sunglasses to prevent fogging when humidity is high. Designed with the everyday rider in mind, Smith crafts the Portal with an in-mold polycarbonate shell, and ample EPS foam to absorb impacts. Since most crashes on the bike rarely result in a 90-degree head-on impact, Smith equips this model of the Portal with MIPS technology. MIPS works to reduce potential rotational forces by lining the inside of the helmet with a breakaway layer that allows rotations to be absorbed by the outside of the helmet, reducing the forces that your body has to take on.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eShell Material: polycarbonate\u003c\/li\u003e\n\u003cli\u003eImpact Foam: EPS\u003c\/li\u003e\n\u003cli\u003eVentilation: 18 vents\u003c\/li\u003e\n\u003cli\u003eFit Adjustment: VaporFit\u003c\/li\u003e\n\u003cli\u003eCertifications: CPSC, CE EN 1078\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2021-01-13T12:54:35-06:00","created_at":"2020-09-05T12:02:02-05:00","vendor":"GrivetOutdoors.com","type":"Sports","tags":["100-150"],"price":11000,"price_min":11000,"price_max":11000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":32066289270886,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"GRV209949","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SMITH Optics Portal MIPS Adult Cycling Helmet (Matte White, Medium)","public_title":null,"options":["Default Title"],"price":11000,"weight":0,"compare_at_price":null,"inventory_quantity":1,"inventory_management":"shopify","inventory_policy":"deny","barcode":"716736212487","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/1289\/1975\/products\/medium_d432c6b9-1ca7-4116-819e-0acc448e89ac.jpg?v=1602635024"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/1289\/1975\/products\/medium_d432c6b9-1ca7-4116-819e-0acc448e89ac.jpg?v=1602635024","options":["Title"],"media":[{"alt":"SMITH Optics Portal MIPS Adult Cycling Helmet (Matte White, Medium) - [variant_title]","id":7599926804582,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1273,"width":1273,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1289\/1975\/products\/medium_d432c6b9-1ca7-4116-819e-0acc448e89ac.jpg?v=1602635024"},"aspect_ratio":1.0,"height":1273,"media_type":"image","src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1289\/1975\/products\/medium_d432c6b9-1ca7-4116-819e-0acc448e89ac.jpg?v=1602635024","width":1273}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"You might not be a podium-hungry cyclist, or not crave race day at all for that matter, but that shouldn't hold you back from riding with comfort and protection. Fortunately with the Smith Portal MIPS Helmet you can find the perfect balance between performance, technical features, and comfort for your daily cruises on the trail or pavement. It's packed with a full 18-vents, optimally placed to keep you cool on strenuous climbs, plus AirEvac ventilation system that boosts airflow under your sunglasses to prevent fogging when humidity is high. Designed with the everyday rider in mind, Smith crafts the Portal with an in-mold polycarbonate shell, and ample EPS foam to absorb impacts. Since most crashes on the bike rarely result in a 90-degree head-on impact, Smith equips this model of the Portal with MIPS technology. MIPS works to reduce potential rotational forces by lining the inside of the helmet with a breakaway layer that allows rotations to be absorbed by the outside of the helmet, reducing the forces that your body has to take on.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eShell Material: polycarbonate\u003c\/li\u003e\n\u003cli\u003eImpact Foam: EPS\u003c\/li\u003e\n\u003cli\u003eVentilation: 18 vents\u003c\/li\u003e\n\u003cli\u003eFit Adjustment: VaporFit\u003c\/li\u003e\n\u003cli\u003eCertifications: CPSC, CE EN 1078\u003c\/li\u003e\n\u003c\/ul\u003e"}

SMITH Optics Portal MIPS Adult Cycling Helmet (Matte White, Medium)

$110.00
GrivetOutdoors.com

SMITH Optics Portal MIPS Adult Cycling Helmet (Matte White, Medium)

$110.00

Grivet Members get back an estimated $11 on this item as part of their member rewards.

Maximum quantity available reached.

More from GrivetOutdoors.com

You might not be a podium-hungry cyclist, or not crave race day at all for that matter, but that shouldn't hold you back from riding with comfort and protection. Fortunately with the Smith Portal MIPS Helmet you can find the perfect balance between performance, technical features, and comfort for your daily cruises on the trail or pavement. It's packed with a full 18-vents, optimally placed to keep you cool on strenuous climbs, plus AirEvac ventilation system that boosts airflow under your sunglasses to prevent fogging when humidity is high. Designed with the everyday rider in mind, Smith crafts the Portal with an in-mold polycarbonate shell, and ample EPS foam to absorb impacts. Since most crashes on the bike rarely result in a 90-degree head-on impact, Smith equips this model of the Portal with MIPS technology. MIPS works to reduce potential rotational forces by lining the inside of the helmet with a breakaway layer that allows rotations to be absorbed by the outside of the helmet, reducing the forces that your body has to take on.
  • Shell Material: polycarbonate
  • Impact Foam: EPS
  • Ventilation: 18 vents
  • Fit Adjustment: VaporFit
  • Certifications: CPSC, CE EN 1078

How To Measure Your Shoe Size

Here are the best shoe size conversion charts - in US, UK, European, and inches, for men's, kid's and women's shoes. 
 
If you've ever wondered "What size shoe is a 38?" (It is a men's size 7.5 in the US) or "What is a size 40 in shoes?" (that'd be a US men's size 9.5), read on to learn how to measure shoe sizes in different countries.
 
How do you measure shoe size? It is possible to measure your own foot using a ruler or a Brannock device, but since our feet our three dimensional, this will only approximate your measurements. After you've measured your foot, try using our conversion charts below to see what your size is. Be mindful that different brands, like Altra running shoes vs. Brooks running shoes vs. Oboz hiking boots, maybe run slightly different in sizes. 
 
Women's Shoe Size Conversions
US Sizes Euro Sizes UK Sizes Inches CM
4 35 2 8.1875" 20.8
4.5 35 2.5 8.375" 21.3
5 35-36 3 8.5" 21.6
5.5 36 3.5 8.75" 22.2
6 36-37 4 8.875" 22.5
6.5 37 4.5 9.0625" 23
7 37-38 5 9.25" 23.5
7.5 38 5.5 9.375" 23.8
8 38-39 6 9.5" 24.1
8.5 39 6.5 9.6875" 24.6
9 39-40 7 9.875" 25.1
9.5 40 7.5 10" 25.4
10 40-41 8 10.1875" 25.9
10.5 41 8.5 10.3125" 26.2
11 41-42 9 10.5" 26.7
11.5 42 9.5 10.6875" 27.1
12 42-43 10 10.875" 27.6

Men's Shoe Size Conversions

US Sizes Euro Sizes UK Sizes Inches CM
6 39 5.5 9.25" 23.5
6.5 39 6 9.5" 24.1
7 40 6.5 9.625" 24.4
7.5 40-41 7 9.75" 24.8
8 41 7.5 9.9375" 25.4
8.5 41-42 8 10.125" 25.7
9 42 8.5 10.25" 26
9.5 42-43 9 10.4375" 26.7
10 43 9.5 10.5625" 27
10.5 43-44 10 10.75" 27.3
11 44 10.5 10.9375" 27.9
11.5 44-45 11 11.125" 28.3
12 45 11.5 11.25" 28.6
13 46 12.5 11.5625" 29.4
14 47 13.5 11.875" 30.2
15 48 14.5 12.1875" 31
16 49 15.5 12.5" 31.8
Big Kid Shoe Size Conversions (7 – 12 years)
US Sizes Euro Sizes UK Sizes Inches CM
3.5 35 2.5 8.625" 21.9
4 36 3 8.75" 22.2
4.5 36 3.5 9" 22.9
5 37 4 9.125" 23.2
5.5 37 4.5 9.25" 23.5
6 38 5 9.5" 24.1
6.5 38 5.5 9.625" 24.4
7 39 6 9.75" 24.8
Little Kid Shoe Size Conversions (4 – 7 years)
US Sizes Euro Sizes UK Sizes Inches CM
10.5 27 9.5 6.625" 16.8
11 28 10 6.75" 17.1
11.5 29 10.5 7" 17.8
12 30 11 7.125" 18.1
12.5 30 11.5 7.25" 18.4
13 31 12 7.5" 19.1
13.5 31 12.5 7.625" 19.4
1 32 13 7.75" 19.7
1.5 33 14 8" 20.3
2 33 1 8.125" 20.6
2.5 34 1.5 8.25" 21
3 34 2 8.5" 21.6

FAQ & Tips

  • What if I am between shoe sizes? We recommend you should size up, especially in active & sports shoes. This includes running shoes and hiking boots. 
  • Does 0.5 size make a difference in shoes? Yes, it certainly does! Wearing shoes that are too small can cause pain and injuries. Blisters, lose of toenails and bunions can all result from wearing shoes that are even 0.5 size too small. These are common ailments of beginner runners. 
  • Is one foot bigger than the other? It is common for people to have one foot that is slightly bigger than the other. Our tip is that you should buy shoes that fit the larger foot (buy pairs of shoes in the larger size of the two). 
  • Should shoes be tight or lose? Unfortunately, this is not a simple question. Shoes should not be too tight or too lose. You should be able to put a thumbs width at the end of your toe box, between your big toe and the pointy end of the shoe. You should also be able to snuggly fit your index finger between your heel and the back of the shoe. If you have not much (or not enough!) space in either of these areas, try a different size shoe. 
  • When should I try on shoes? A great tip for runners is to try on running shoes at the end of a work day. As you run, just like when you are on your feet for work, your feet swell. You will want to try on running shoes when your feet are at their largest. This allows them to still fit comfortably after a long distance run. 
  • What size shoe should I buy? This shoe chart is not a guarantee your shoes will fit. If you are in the area of Memphis, Tennessee, run on in to one of our running specialty & gear stores and our experienced fit experts will help you out!

Image below: A Brannock device is one tool run specialists use to measure shoe size. It can measure not only foot length, but also foot width. 

How to measure shoe size - Brannock Device

Customer Reviews

No reviews yet
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Customer Reviews

No reviews yet
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Sale

Unavailable

Sold Out