North, 2026

North Boost 2026

1524mm long · 5'0"

495mm wide

86mm thick

40litres

See similar boards

Open in Studio See it on northactionsports.com

Sizes & Numbers

Listed by the brand, read off a photo, or worked out

In one line

Longer and leaner than most. A round tail, a medium nose and gently curved rails.

derived · against the 88 other surf foil boards in the atlas, read off the outlines.

As listed by North

North Boost 2026: every size as listed by North
size	length	width	thickness	weight	price
35 L	4'9 · 1448 mm	483 mm	83 mm	3.1 kg	US$1,549
40 L	5'0 · 1524 mm	495 mm	86 mm	3.3 kg	US$1,569
45 L	5'3 · 1600 mm	508 mm	89 mm	3.5 kg	US$1,579
65 L	5'6 · 1676 mm	559 mm	95 mm · medium confidence	3.9 kg	US$1,599

Prices as the North store showed them on 2026-10-29, in its currency · the cheapest version first, every version on hover

Every size side by side, tails on one line, one scale

Which Boost Size for Your Weight?

The North Boost 2026 size each rider would pick, by weight and level

Your weight

kg≈ 165 lb

Your level

75 kg · getting there · look for 48.8–63.8 L

The Boost 65 L

Just over your range: the nearest size, a little big for you.

Other boards for you

A rule of thumb (0.65 to 0.85 L per kg you weigh), not North’s chart

Every weight and level

North Boost 2026: the size for a rider of 60 to 105 kg, by level
level	60 kg	75 kg	90 kg	105 kg
First sessions1 to 1.25 L per kg you weigh	65 L	too small	too small	too small
Getting there0.65 to 0.85 L per kg you weigh	45 L	65 L · big	65 L	65 L · small
Confident0.45 to 0.6 L per kg you weigh	35 L	40 L	45 L	65 L · big
Expert0.3 to 0.45 L per kg you weigh	too big	35 L · big	35 L	40 L

Rules of thumb, not North’s chart · “small” and “big”: the nearest size, just outside the range · How the sizes are worked out · Find your board

Next to your board?

Lay the North Boost 40 L over up to four others, at one scale.

Compare with…

Shape & Rocker

From above, then from the side, true scale · the chosen size solid, the others dashed

Read off the 35 L outline · derived

56 %wide point, 811 mm from the tail

3.00length over width

404mm wide 12″ from the tail

5,691cm² of planform

Read off the 40 L outline · derived

56 %wide point, 854 mm from the tail

3.07length over width

409mm wide 12″ from the tail

6,158cm² of planform

Read off the 45 L outline · derived

56 %wide point, 896 mm from the tail

3.15length over width

412mm wide 12″ from the tail

6,621cm² of planform

Read off the 65 L outline · derived

56 %wide point, 939 mm from the tail

3.00length over width

447mm wide 12″ from the tail

7,630cm² of planform

Rocker of the 35 L · scaled from the 40 L measured

47 mmtail rocker, at the tip

4 mm12″ from the tail

16 mm12″ from the nose

100 mmnose rocker, at the tip

569 mmflat to within 3 mm, from 26 % to 65 % of the length

47 %of the length to the lowest point, from the tail

121 mmat its thickest, 48 % from the tail

37 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 40 L · measured

50 mmtail rocker, at the tip

5 mm12″ from the tail

18 mm12″ from the nose

106 mmnose rocker, at the tip

584 mmflat to within 3 mm, from 26 % to 65 % of the length

47 %of the length to the lowest point, from the tail

125 mmat its thickest, 48 % from the tail · on the photo; North lists 86 mm

39 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 45 L · scaled from the 40 L measured

53 mmtail rocker, at the tip

5 mm12″ from the tail

21 mm12″ from the nose

112 mmnose rocker, at the tip

601 mmflat to within 3 mm, from 27 % to 64 % of the length

47 %of the length to the lowest point, from the tail

130 mmat its thickest, 48 % from the tail

41 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 65 L · scaled from the 40 L measured

55 mmtail rocker, at the tip

6 mm12″ from the tail

24 mm12″ from the nose

117 mmnose rocker, at the tip

617 mmflat to within 3 mm, from 27 % to 64 % of the length

47 %of the length to the lowest point, from the tail

139 mmat its thickest, 48 % from the tail

43 mmlonger along the bottom curve than flat

Lay this rocker over other boards

True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on North's photo of the 40 L. Tail end set by North's photo convention, not checked by a person.