PADI Tec 40

Size Guide

Technical Diving Fundamentals

If you're interested in technical diving, but haven't yet met the prerequisites for the PADI Tec 50 Diver course or PADI Tec 45 course, you can consider enrolling in the PADI Tec 40 course. It is the first subdivision of the full PADI Tec Deep Diver course and consists of the first four dives. Because you can do one of these dives in confined water (such as a swimming pool), many divers start the Tec 40 courses in the winter months, ready to continue in open water when spring arrives.

What You Learn

  • Use decompression software and dive computers to plan and make decompression dives with no more than 10 minutes of total decompression and not deeper than 40 metres/130 feet.
  • Use a single cylinder of decompression gas with up to 50 percent oxygen (EANx50) to add conservatism to the required decompression.

 

Related Items

Size Charts

BARE MEN'S DRYSUITS & UNDERWEAR

WEIGHT(lbs) 120-140 35-155 150-175 150-180 160-185 170-195 175-200 180-205 190-215 195-220 200-225 210-235 215-240 220-245 230-255 250-275 270-295
HEIGHT(in) 5'2"-5'4" 5’6”-5’8” 5’8”-5’10” 5’11”-6’1” 5’6”-5’8” 5’10”-6’0” 6’0”-6’2” 5’7”-5’9” 5’11”-6’1” 6'1”-6’3” 5'8"-5'10"  6'0"-6'2" 6'2"-6'4" 5'8"-5'10" 6'1"-6'3" 6'2"-6'4" 6'3"-6'5"
CHEST(in) 33-35 35-37 37-39 37-39 39-41 39-41 39-41 41-43 41-43 41-43 43-45 43-45 43-45 45-47 45-47 47-49 49-51
WAIST(in) 27-29 39-31 31-33 31-33 33-35 33-35 33-35 35-37 35-37 35-37 37-39 37-39 37-39 39-41 39-41 41-43 43-45
HIP(in) 34-36 35-37 37-39 37-39 39-41 39-41 39-41 41-43 41-43 41-43 43-45 43-45 43-45 45-47 45-47 47-49 49-51
TORSO(in) 257/8 273/8 283/8 295/8 275/8 293/8 305/8 28 30 311/4 281/8 305/8 317/8 281/2 311/4 317/8 323/8
INSEAM(in) 281/2 30 31 32 301/4 32 33 301/2 321/2 331/2 31 33 34 311/4 331/2 34 341/2
YOUR SIZE XS S M MTALL MLSHORT ML MLTALL LSHORT L LTALL XLSHORT XL XLTALL 2XLSHORT 2XL 3XL 4XL

BARE MEN'S WETSUITS

WEIGHT(lbs) 120-140 135-155 150-175 150-180 160-185 170-195 175-200 180-205 190-215 195-220 200-225 210-235 215-240 220-245 230-255 250-275 270-295
HEIGHT(in) 5'2"-5'4" 5’6”-5’8” 5’8”-5’10” 5’11”-6’1” 5’6”-5’8” 5’10”-6’0” 6’0”-6’2” 5’7”-5’9” 5’11”-6’1” 6'1”-6’3” 5'8"-5'10" 6'0"-6'2" 6'2"-6'4" 5'8"-5'10" 6'1"-6'3" 6'2"-6'4" 6'3"-6'5"
CHEST(in) 33-35 35-37 37-39 37-39 39-41 39-41 39-41 41-43 41-43 41-43 43-45 43-45 43-45 45-47 45-47 47-49 49-51
WAIST(in) 27-29 39-31 31-33 31-33 33-35 33-35 33-35 35-37 35-37 35-37 37-39 37-39 37-39 39-41 39-41 41-43 43-45
HIP(in) 34-36 35-37 37-39 37-39 39-41 39-41 39-41 41-43 41-43 41-43 43-45 43-45 43-45 45-47 45-47 47-49 49-51
TORSO(in) 257/8 273/8 283/8 295/8 275/8 293/8 305/8 28 30 311/4 281/8 305/8 317/8 281/2 311/4 317/8 323/8
INSEAM(in) 281/2 30 31 32 301/4 32 33 301/2 321/2 331/2 31 33 34 311/4 331/2 34 341/2
YOUR SIZE XS S M MTALL MLSHORT ML MLTALL LSHORT L LTALL XLSHORT XL XLTALL 2XLSHORT 2XL 3XL 4XL

BARE WOMEN'S DRYSUITS & UNDERWEAR

WEIGHT(lbs) 100-125 120-145 140-165 145-170 160-185 180-205
HEIGHT(in) 5'31/2"-5'51/2" 5'5"-5'7" 5'61/2"-5'81/2" 5'91/2"-5'111/2" 5’8”-5’10” 5’91/2”-5’111/2
CHEST(in) 32-35 35-38 38-41 38-41 41-44 44-47
WAIST(in) 23-26 26-29 29-32 29-32 32-35 35-38
HIP(in) 33-36 36-39 39-42 39-42 42-45 45-48
TORSO(in) 231/4 241/4 251/4 261/2 261/4 271/4
INSEAM(in) 311/4 313/4 321/4 34 323/4 331/4
YOUR SIZE XS S M MTALL L XL

BARE WOMEN'S WETSUITS - EVOKE, NIXIE AND LIMITED EDITION

HEIGHT(in) 5'2"-5'4" 5’3”-5’5” 5’5”-5’7” 5’4”-5’6” 5’7”-5’9” 5’4”-5’6” 5'5"-5'7" 5'9"-5'11" 5'-5"-5'7" 5’6”-5’8” 5’6”-5’8” 5'7"-5'9" 5'7"-5'9" 5'8"-5'10"
CHEST(in) 30-32 32-34 32-34 34-36 34-36 37-39 36-38 36-38 39-41 38-40 41-43 40-42 43-45 42-44
WAIST(in) 23-25 25-27 25-27 27-29 27-29 33-35 29-31 29-31 35-37 31-33 37-39 33-35 39-41 35-37
HIP(in) 33-35 35-37 35-37 37-39 37-39 43-45 39-41 39-41 45-47 41-43 47-49 43-45 49-51 45-47
INSEAM(in) 297/8 301/2 313/4 311/8 33 311/8 313/4 34 313/4 323/8 323/8 33 33 335/8
YOUR SIZE 2 4 4TALL 6 6TALL 6+ 8 8TALL 8+ 10 10+ 12 12+ 14

BARE FOOTWEAR - UNISEX

FOOT LENGTH

82/3 9 91/2 97/8 101/4 102/3 11 111/2 117/8 121/4
USA SIZE 4 M
5.5 W
5 M
6.5 W
6 M
7.5 W
7 M
8.5 W
8 M
9.5 W
9 M
10.5 W
10 M
11.5 W
11 M
12.5 W
12 M
13.5 W
13 M
14.5 W
UK SIZE 3 M
2.5 W
4 M
3.5 W
5 M
4.5 W
6 M
5.5 W
7 M
6.5 W
8 M
7.5 W
9 M
8.5 W
10 M
9.5 W
11 M
10.5 W
12 M
11.5 W
EURO SIZE 34-35 36 37-38 39 40-41 42 43-44 45-46 47-48 49-50
YOUR SIZE 3XS 2XS XS S M L XL 2XL 3XL 4XL

 

BARE HOODS - UNISEX SIZING

FOREHEAD 21 in 21.5 in 22.5 in 23.5 in 24 in 24.5 in
NECK 13 in 14 in 15 in 16 in 17 in 18 in
YOUR SIZE XS S M L XL 2XL